311210103212 has 12 divisors (see below), whose sum is σ = 544853360016. Its totient is φ = 155537714640.

The previous prime is 311210103103. The next prime is 311210103221. The reversal of 311210103212 is 212301012113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16823843 + ... + 16842330.

It is an arithmetic number, because the mean of its divisors is an integer number (45404446668).

Almost surely, 2^311210103212 is an apocalyptic number.

It is an amenable number.

311210103212 is a deficient number, since it is larger than the sum of its proper divisors (233643256804).

311210103212 is a wasteful number, since it uses less digits than its factorization.

311210103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33668488 (or 33668486 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 311210103212 its reverse (212301012113), we get a palindrome (523511115325).

The spelling of 311210103212 in words is "three hundred eleven billion, two hundred ten million, one hundred three thousand, two hundred twelve".