311103003012 has 12 divisors (see below), whose sum is σ = 725907007056. Its totient is φ = 103701001000.

The previous prime is 311103002939. The next prime is 311103003023. The reversal of 311103003012 is 210300301113.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 311103002982 and 311103003000.

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, 12962625114 + ... + 12962625137.

It is an arithmetic number, because the mean of its divisors is an integer number (60492250588).

Almost surely, 2^311103003012 is an apocalyptic number.

It is an amenable number.

311103003012 is an abundant number, since it is smaller than the sum of its proper divisors (414804004044).

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

311103003012 is a wasteful number, since it uses less digits than its factorization.

311103003012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25925250258 (or 25925250256 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 311103003012 its reverse (210300301113), we get a palindrome (521403304125).

The spelling of 311103003012 in words is "three hundred eleven billion, one hundred three million, three thousand, twelve".