312020313020 has 96 divisors (see below), whose sum is σ = 748255693248. Its totient is φ = 108270784512.

The previous prime is 312020313019. The next prime is 312020313061. The reversal of 312020313020 is 20313020213.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 312020313020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2967182 + ... + 3070538.

It is an arithmetic number, because the mean of its divisors is an integer number (7794330138).

Almost surely, 2^312020313020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312020313020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374127846624).

312020313020 is an abundant number, since it is smaller than the sum of its proper divisors (436235380228).

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

312020313020 is a wasteful number, since it uses less digits than its factorization.

312020313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104079 (or 104077 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 312020313020 its reverse (20313020213), we get a palindrome (332333333233).

The spelling of 312020313020 in words is "three hundred twelve billion, twenty million, three hundred thirteen thousand, twenty".