30131210121232 has 40 divisors (see below), whose sum is σ = 63928575184320. Its totient is φ = 13643928516480.

The previous prime is 30131210121223. The next prime is 30131210121251. The reversal of 30131210121232 is 23212101213103.

It is a super-2 number, since 2×30131210121232² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325429107 + ... + 325521682.

It is an arithmetic number, because the mean of its divisors is an integer number (1598214379608).

Almost surely, 2^{30131210121232} is an apocalyptic number.

It is an amenable number.

30131210121232 is an abundant number, since it is smaller than the sum of its proper divisors (33797365063088).

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

30131210121232 is a wasteful number, since it uses less digits than its factorization.

30131210121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650951071 (or 650951065 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30131210121232 its reverse (23212101213103), we get a palindrome (53343311334335).

The spelling of 30131210121232 in words is "thirty trillion, one hundred thirty-one billion, two hundred ten million, one hundred twenty-one thousand, two hundred thirty-two".