23131130304432 has 40 divisors (see below), whose sum is σ = 62353481693184. Its totient is φ = 7375142995264.

The previous prime is 23131130304397. The next prime is 23131130304439. The reversal of 23131130304432 is 23440303113132.

It is a super-3 number, since 3×23131130304432³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 23131130304432.

It is not an unprimeable number, because it can be changed into a prime (23131130304439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10476054288 + ... + 10476056495.

Almost surely, 2^{23131130304432} is an apocalyptic number.

It is an amenable number.

23131130304432 is an abundant number, since it is smaller than the sum of its proper divisors (39222351388752).

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

23131130304432 is a wasteful number, since it uses less digits than its factorization.

23131130304432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20952110817 (or 20952110811 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 23131130304432 its reverse (23440303113132), we get a palindrome (46571433417564).

The spelling of 23131130304432 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty million, three hundred four thousand, four hundred thirty-two".