23102520105 has 32 divisors (see below), whose sum is σ = 42318701568. Its totient is φ = 10542628800.

The previous prime is 23102520101. The next prime is 23102520127. The reversal of 23102520105 is 50102520132.

It is not a de Polignac number, because 23102520105 - 2² = 23102520101 is a prime.

It is a super-2 number, since 2×23102520105² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (23102520101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132711 + ... + 252620.

It is an arithmetic number, because the mean of its divisors is an integer number (1322459424).

Almost surely, 2^23102520105 is an apocalyptic number.

It is an amenable number.

23102520105 is a deficient number, since it is larger than the sum of its proper divisors (19216181463).

23102520105 is a wasteful number, since it uses less digits than its factorization.

23102520105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385917.

The product of its (nonzero) digits is 600, while the sum is 21.

The spelling of 23102520105 in words is "twenty-three billion, one hundred two million, five hundred twenty thousand, one hundred five".