312211313016 has 16 divisors (see below), whose sum is σ = 780528282600. Its totient is φ = 104070437664.

The previous prime is 312211312997. The next prime is 312211313039. The reversal of 312211313016 is 610313112213.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 13008804709 = 312211313016 / (3 + 1 + 2 + 2 + 1 + 1 + 3 + 1 + 3 + 0 + 1 + 6).

It is a congruent number.

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, 6504402331 + ... + 6504402378.

Almost surely, 2^312211313016 is an apocalyptic number.

It is an amenable number.

312211313016 is an abundant number, since it is smaller than the sum of its proper divisors (468316969584).

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

312211313016 is a wasteful number, since it uses less digits than its factorization.

312211313016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13008804718 (or 13008804714 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 312211313016 its reverse (610313112213), we get a palindrome (922524425229).

The spelling of 312211313016 in words is "three hundred twelve billion, two hundred eleven million, three hundred thirteen thousand, sixteen".