311012020012 has 6 divisors (see below), whose sum is σ = 544271035028. Its totient is φ = 155506010004.

The previous prime is 311012020009. The next prime is 311012020021. The reversal of 311012020012 is 210020210113.

It is a junction number, because it is equal to n+sod(n) for n = 311012019974 and 311012020001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38876502498 + ... + 38876502505.

Almost surely, 2^311012020012 is an apocalyptic number.

It is an amenable number.

311012020012 is a deficient number, since it is larger than the sum of its proper divisors (233259015016).

311012020012 is a wasteful number, since it uses less digits than its factorization.

311012020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77753005007 (or 77753005005 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 311012020012 its reverse (210020210113), we get a palindrome (521032230125).

The spelling of 311012020012 in words is "three hundred eleven billion, twelve million, twenty thousand, twelve".