312023122000 has 160 divisors (see below), whose sum is σ = 805669862400. Its totient is φ = 116617536000.

The previous prime is 312023121979. The next prime is 312023122063. The reversal of 312023122000 is 221320213.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1711231 + ... + 1884769.

It is an arithmetic number, because the mean of its divisors is an integer number (5035436640).

Almost surely, 2^312023122000 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 312023122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402834931200).

312023122000 is an abundant number, since it is smaller than the sum of its proper divisors (493646740400).

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

312023122000 is a wasteful number, since it uses less digits than its factorization.

312023122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173622 (or 173606 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 312023122000 its reverse (221320213), we get a palindrome (312244442213).

The spelling of 312023122000 in words is "three hundred twelve billion, twenty-three million, one hundred twenty-two thousand".