311431032020412 has 36 divisors (see below), whose sum is σ = 790221706113840. Its totient is φ = 103415627866752.

The previous prime is 311431032020399. The next prime is 311431032020431. The reversal of 311431032020412 is 214020230134113.

311431032020412 is a `hidden beast` number, since 3 + 1 + 1 + 4 + 310 + 320 + 20 + 4 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16446496237 + ... + 16446515172.

Almost surely, 2^{311431032020412} is an apocalyptic number.

It is an amenable number.

311431032020412 is an abundant number, since it is smaller than the sum of its proper divisors (478790674093428).

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

311431032020412 is a wasteful number, since it uses less digits than its factorization.

311431032020412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32893011682 (or 32893011677 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 311431032020412 its reverse (214020230134113), we get a palindrome (525451262154525).

The spelling of 311431032020412 in words is "three hundred eleven trillion, four hundred thirty-one billion, thirty-two million, twenty thousand, four hundred twelve".