23431344615516 has 24 divisors (see below), whose sum is σ = 57889204344720. Its totient is φ = 7351010075392.

The previous prime is 23431344615463. The next prime is 23431344615541. The reversal of 23431344615516 is 61551644313432.

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, 57429766011 + ... + 57429766418.

It is an arithmetic number, because the mean of its divisors is an integer number (2412050181030).

Almost surely, 2^{23431344615516} is an apocalyptic number.

It is an amenable number.

23431344615516 is an abundant number, since it is smaller than the sum of its proper divisors (34457859729204).

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

23431344615516 is a wasteful number, since it uses less digits than its factorization.

23431344615516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114859532453 (or 114859532451 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 48.

Adding to 23431344615516 its reverse (61551644313432), we get a palindrome (84982988928948).

The spelling of 23431344615516 in words is "twenty-three trillion, four hundred thirty-one billion, three hundred forty-four million, six hundred fifteen thousand, five hundred sixteen".