23115522012431 has 8 divisors (see below), whose sum is σ = 24013166081664. Its totient is φ = 22227376822560.

The previous prime is 23115522012413. The next prime is 23115522012467. The reversal of 23115522012431 is 13421022551132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23115522012431 is a prime.

It is a super-2 number, since 2×23115522012431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23115522012731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374714880 + ... + 2374724613.

It is an arithmetic number, because the mean of its divisors is an integer number (3001645760208).

Almost surely, 2^{23115522012431} is an apocalyptic number.

23115522012431 is a deficient number, since it is larger than the sum of its proper divisors (897644069233).

23115522012431 is a wasteful number, since it uses less digits than its factorization.

23115522012431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749439681.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 23115522012431 its reverse (13421022551132), we get a palindrome (36536544563563).

The spelling of 23115522012431 in words is "twenty-three trillion, one hundred fifteen billion, five hundred twenty-two million, twelve thousand, four hundred thirty-one".