1311310012 has 24 divisors (see below), whose sum is σ = 2310018480. Its totient is φ = 651315840.

The previous prime is 1311309959. The next prime is 1311310031. The reversal of 1311310012 is 2100131131.

It is a junction number, because it is equal to n+sod(n) for n = 1311309974 and 1311310001.

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, 1015087 + ... + 1016377.

It is an arithmetic number, because the mean of its divisors is an integer number (96250770).

Almost surely, 2^1311310012 is an apocalyptic number.

It is an amenable number.

1311310012 is a deficient number, since it is larger than the sum of its proper divisors (998708468).

1311310012 is a wasteful number, since it uses less digits than its factorization.

1311310012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781 (or 2779 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1311310012 is about 36212.0147464899. The cubic root of 1311310012 is about 1094.5487912543.

Adding to 1311310012 its reverse (2100131131), we get a palindrome (3411441143).

The spelling of 1311310012 in words is "one billion, three hundred eleven million, three hundred ten thousand, twelve".