312122342000 has 160 divisors (see below), whose sum is σ = 870905877504. Its totient is φ = 105973920000.

The previous prime is 312122341987. The next prime is 312122342027. The reversal of 312122342000 is 243221213.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1333775 + ... + 1550225.

Almost surely, 2^312122342000 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 312122342000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435452938752).

312122342000 is an abundant number, since it is smaller than the sum of its proper divisors (558783535504).

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

312122342000 is a wasteful number, since it uses less digits than its factorization.

312122342000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216584 (or 216568 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 312122342000 its reverse (243221213), we get a palindrome (312365563213).

The spelling of 312122342000 in words is "three hundred twelve billion, one hundred twenty-two million, three hundred forty-two thousand".