23115431520120 has 64 divisors (see below), whose sum is σ = 69346612477440. Its totient is φ = 6164086812800.

The previous prime is 23115431520037. The next prime is 23115431520151. The reversal of 23115431520120 is 2102513451132.

It is a happy number.

It is a super-3 number, since 3×23115431520120³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46937965 + ... + 47427875.

It is an arithmetic number, because the mean of its divisors is an integer number (1083540819960).

Almost surely, 2^{23115431520120} is an apocalyptic number.

23115431520120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23115431520120 is an abundant number, since it is smaller than the sum of its proper divisors (46231180957320).

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

23115431520120 is a wasteful number, since it uses less digits than its factorization.

23115431520120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883116 (or 883112 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 23115431520120 its reverse (2102513451132), we get a palindrome (25217944971252).

The spelling of 23115431520120 in words is "twenty-three trillion, one hundred fifteen billion, four hundred thirty-one million, five hundred twenty thousand, one hundred twenty".