311303405112012 has 72 divisors (see below), whose sum is σ = 821209468584960. Its totient is φ = 99245237683680.

The previous prime is 311303405112001. The next prime is 311303405112023. The reversal of 311303405112012 is 210211504303113.

311303405112012 is a `hidden beast` number, since 3 + 1 + 130 + 3 + 4 + 0 + 511 + 2 + 0 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (311303405112001) and next prime (311303405112023).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13150812 + ... + 28205507.

It is an arithmetic number, because the mean of its divisors is an integer number (11405687063680).

Almost surely, 2^{311303405112012} is an apocalyptic number.

It is an amenable number.

311303405112012 is an abundant number, since it is smaller than the sum of its proper divisors (509906063472948).

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

311303405112012 is a wasteful number, since it uses less digits than its factorization.

311303405112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41365443 (or 41365438 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 311303405112012 its reverse (210211504303113), we get a palindrome (521514909415125).

The spelling of 311303405112012 in words is "three hundred eleven trillion, three hundred three billion, four hundred five million, one hundred twelve thousand, twelve".