311155353230212 has 12 divisors (see below), whose sum is σ = 551981071826716. Its totient is φ = 153446475565440.

The previous prime is 311155353230207. The next prime is 311155353230237. The reversal of 311155353230212 is 212032353551113.

It can be written as a sum of positive squares in 2 ways, for example, as 65458067259456 + 245697285970756 = 8090616^2 + 15674734^2 .

It is a super-3 number, since 3×311155353230212³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532800262089 + ... + 532800262672.

Almost surely, 2^{311155353230212} is an apocalyptic number.

It is an amenable number.

311155353230212 is a deficient number, since it is larger than the sum of its proper divisors (240825718596504).

311155353230212 is a wasteful number, since it uses less digits than its factorization.

311155353230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065600524838 (or 1065600524836 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 311155353230212 in words is "three hundred eleven trillion, one hundred fifty-five billion, three hundred fifty-three million, two hundred thirty thousand, two hundred twelve".