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13001232012101 = 17764778353653
BaseRepresentation
bin1011110100110001010111…
…0100001101001101000101
31201000220110012202020011022
42331030111310031031011
53201003010343341401
643352403350520525
72511210435465404
oct275142564151505
951026405666138
1013001232012101
114162878590713
12155b886366145
1373401acaa668
1432d3978c963b
151782d28e771b
hexbd315d0d345

13001232012101 has 4 divisors (see below), whose sum is σ = 13766010365772. Its totient is φ = 12236453658432.

The previous prime is 13001232012079. The next prime is 13001232012137. The reversal of 13001232012101 is 10121023210031.

13001232012101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11051435896900 + 1949796115201 = 3324370^2 + 1396351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13001232012101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 764778353653 = 13001232012101 / (1 + 3 + 0 + 0 + 1 + 2 + 3 + 2 + 0 + 1 + 2 + 1 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13001232012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001232012151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382389176810 + ... + 382389176843.

It is an arithmetic number, because the mean of its divisors is an integer number (3441502591443).

Almost surely, 213001232012101 is an apocalyptic number.

It is an amenable number.

13001232012101 is a deficient number, since it is larger than the sum of its proper divisors (764778353671).

13001232012101 is an equidigital number, since it uses as much as digits as its factorization.

13001232012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764778353670.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13001232012101 its reverse (10121023210031), we get a palindrome (23122255222132).

The spelling of 13001232012101 in words is "thirteen trillion, one billion, two hundred thirty-two million, twelve thousand, one hundred one".

Divisors: 1 17 764778353653 13001232012101