23173372140512 has 24 divisors (see below), whose sum is σ = 49770083347992. Its totient is φ = 10533350972800.

The previous prime is 23173372140497. The next prime is 23173372140547. The reversal of 23173372140512 is 21504127337132.

It is a self number, because there is not a number n which added to its sum of digits gives 23173372140512.

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 3 ways as a sum of consecutive naturals, for example, 32916721439 + ... + 32916722142.

It is an arithmetic number, because the mean of its divisors is an integer number (2073753472833).

Almost surely, 2^{23173372140512} is an apocalyptic number.

23173372140512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23173372140512 is an abundant number, since it is smaller than the sum of its proper divisors (26596711207480).

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

23173372140512 is a wasteful number, since it uses less digits than its factorization.

23173372140512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65833443602 (or 65833443594 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

Adding to 23173372140512 its reverse (21504127337132), we get a palindrome (44677499477644).

The spelling of 23173372140512 in words is "twenty-three trillion, one hundred seventy-three billion, three hundred seventy-two million, one hundred forty thousand, five hundred twelve".