23140505131504 has 60 divisors (see below), whose sum is σ = 46767716837496. Its totient is φ = 11087946420096.

The previous prime is 23140505131489. The next prime is 23140505131511. The reversal of 23140505131504 is 40513150504132.

It is a self number, because there is not a number n which added to its sum of digits gives 23140505131504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5811262 + ... + 8947165.

Almost surely, 2^{23140505131504} is an apocalyptic number.

It is an amenable number.

23140505131504 is an abundant number, since it is smaller than the sum of its proper divisors (23627211705992).

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

23140505131504 is a wasteful number, since it uses less digits than its factorization.

23140505131504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14758574 (or 14758525 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 23140505131504 its reverse (40513150504132), we get a palindrome (63653655635636).

The spelling of 23140505131504 in words is "twenty-three trillion, one hundred forty billion, five hundred five million, one hundred thirty-one thousand, five hundred four".