312039320940 has 36 divisors (see below), whose sum is σ = 946519274064. Its totient is φ = 83210485536.

The previous prime is 312039320933. The next prime is 312039320947. The reversal of 312039320940 is 49023930213.

312039320940 is a `hidden beast` number, since 3 + 1 + 20 + 393 + 209 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (312039320933) and next prime (312039320947).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 312039320895 and 312039320904.

It is not an unprimeable number, because it can be changed into a prime (312039320947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 866775712 + ... + 866776071.

Almost surely, 2^312039320940 is an apocalyptic number.

312039320940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312039320940 is an abundant number, since it is smaller than the sum of its proper divisors (634479953124).

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

312039320940 is a wasteful number, since it uses less digits than its factorization.

312039320940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733551798 (or 1733551793 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The spelling of 312039320940 in words is "three hundred twelve billion, thirty-nine million, three hundred twenty thousand, nine hundred forty".