23100313505520 has 40 divisors (see below), whose sum is σ = 71610971867856. Its totient is φ = 6160083601408.

The previous prime is 23100313505473. The next prime is 23100313505629. The reversal of 23100313505520 is 2550531300132.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×23100313505520² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48125652897 + ... + 48125653376.

Almost surely, 2^{23100313505520} is an apocalyptic number.

23100313505520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23100313505520 is an abundant number, since it is smaller than the sum of its proper divisors (48510658362336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23100313505520 is a wasteful number, since it uses less digits than its factorization.

23100313505520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96251306289 (or 96251306283 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 23100313505520 its reverse (2550531300132), we get a palindrome (25650844805652).

The spelling of 23100313505520 in words is "twenty-three trillion, one hundred billion, three hundred thirteen million, five hundred five thousand, five hundred twenty".