311401012 has 24 divisors (see below), whose sum is σ = 600523616. Its totient is φ = 140380128.

The previous prime is 311401007. The next prime is 311401067. The reversal of 311401012 is 210104113.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 311400983 and 311401001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67398 + ... + 71869.

Almost surely, 2^311401012 is an apocalyptic number.

It is an amenable number.

311401012 is a deficient number, since it is larger than the sum of its proper divisors (289122604).

311401012 is a wasteful number, since it uses less digits than its factorization.

311401012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139327 (or 139325 counting only the distinct ones).

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

The square root of 311401012 is about 17646.5580779936. The cubic root of 311401012 is about 677.8079731618.

Adding to 311401012 its reverse (210104113), we get a palindrome (521505125).

The spelling of 311401012 in words is "three hundred eleven million, four hundred one thousand, twelve".