321130302432312 has 64 divisors (see below), whose sum is σ = 850098956601600. Its totient is φ = 100741054164480.

The previous prime is 321130302432307. The next prime is 321130302432341. The reversal of 321130302432312 is 213234203031123.

It is a super-2 number, since 2×321130302432312² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321130302432312.

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, 15080764 + ... + 29490507.

It is an arithmetic number, because the mean of its divisors is an integer number (13282796196900).

Almost surely, 2^{321130302432312} is an apocalyptic number.

It is an amenable number.

321130302432312 is an abundant number, since it is smaller than the sum of its proper divisors (528968654169288).

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

321130302432312 is a wasteful number, since it uses less digits than its factorization.

321130302432312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44588956 (or 44588952 counting only the distinct ones).

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

Adding to 321130302432312 its reverse (213234203031123), we get a palindrome (534364505463435).

The spelling of 321130302432312 in words is "three hundred twenty-one trillion, one hundred thirty billion, three hundred two million, four hundred thirty-two thousand, three hundred twelve".