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10121010001 = 64715642983
BaseRepresentation
bin10010110110100001…
…00101101101010001
3222010100110120122021
421123100211231101
5131211434310001
64352144211441
7505544110534
oct113320455521
928110416567
1010121010001
114324056683
121b65609b81
13c53aa901b
146c0262a1b
153e3812ba1
hex25b425b51

10121010001 has 4 divisors (see below), whose sum is σ = 10136653632. Its totient is φ = 10105366372.

The previous prime is 10121009923. The next prime is 10121010013. The reversal of 10121010001 is 10001012101.

10121010001 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10121010001 - 213 = 10121001809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121010301) 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, 7820845 + ... + 7822138.

It is an arithmetic number, because the mean of its divisors is an integer number (2534163408).

Almost surely, 210121010001 is an apocalyptic number.

It is an amenable number.

10121010001 is a deficient number, since it is larger than the sum of its proper divisors (15643631).

10121010001 is an equidigital number, since it uses as much as digits as its factorization.

10121010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15643630.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 10121010001 its reverse (10001012101), we get a palindrome (20122022102).

The spelling of 10121010001 in words is "ten billion, one hundred twenty-one million, ten thousand, one".

Divisors: 1 647 15642983 10121010001