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10201201001 = 30373358973
BaseRepresentation
bin10011000000000100…
…11111100101101001
3222022221100201000022
421200002133211221
5131343001413001
64404131050225
7510536530535
oct114002374551
928287321008
1010201201001
114365348332
121b88440975
13c675a5314
146cab78bc5
153ea8a311b
hex26009f969

10201201001 has 4 divisors (see below), whose sum is σ = 10204563012. Its totient is φ = 10197838992.

The previous prime is 10201200943. The next prime is 10201201007. The reversal of 10201201001 is 10010210201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10010210201 = 71711139591.

It can be written as a sum of positive squares in 2 ways, for example, as 3809358400 + 6391842601 = 61720^2 + 79949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10201201001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10201201001.

It is not an unprimeable number, because it can be changed into a prime (10201201007) 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, 1676450 + ... + 1682523.

It is an arithmetic number, because the mean of its divisors is an integer number (2551140753).

Almost surely, 210201201001 is an apocalyptic number.

It is an amenable number.

10201201001 is a deficient number, since it is larger than the sum of its proper divisors (3362011).

10201201001 is an equidigital number, since it uses as much as digits as its factorization.

10201201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362010.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10201201001 its reverse (10010210201), we get a palindrome (20211411202).

It can be divided in two parts, 1020 and 1201001, that added together give a palindrome (1202021).

The spelling of 10201201001 in words is "ten billion, two hundred one million, two hundred one thousand, one".

Divisors: 1 3037 3358973 10201201001