311532653444412 has 48 divisors (see below), whose sum is σ = 758571832811520. Its totient is φ = 99321716015808.

The previous prime is 311532653444399. The next prime is 311532653444447. The reversal of 311532653444412 is 214444356235113.

It is a happy number.

It is a super-2 number, since 2×311532653444412² (a number of 30 digits) contains 22 as substring.

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, 39171987 + ... + 46449002.

It is an arithmetic number, because the mean of its divisors is an integer number (15803579850240).

Almost surely, 2^{311532653444412} is an apocalyptic number.

It is an amenable number.

311532653444412 is an abundant number, since it is smaller than the sum of its proper divisors (447039179367108).

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

311532653444412 is a wasteful number, since it uses less digits than its factorization.

311532653444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85634202 (or 85634200 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 48.

The spelling of 311532653444412 in words is "three hundred eleven trillion, five hundred thirty-two billion, six hundred fifty-three million, four hundred forty-four thousand, four hundred twelve".