312132232122 has 64 divisors (see below), whose sum is σ = 674731745280. Its totient is φ = 95965619904.

The previous prime is 312132232109. The next prime is 312132232141. The reversal of 312132232122 is 221232231213.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 312132232092 and 312132232101.

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, 3100023 + ... + 3199125.

It is an arithmetic number, because the mean of its divisors is an integer number (10542683520).

Almost surely, 2^312132232122 is an apocalyptic number.

312132232122 is an abundant number, since it is smaller than the sum of its proper divisors (362599513158).

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

312132232122 is a wasteful number, since it uses less digits than its factorization.

312132232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99947.

The product of its digits is 1728, while the sum is 24.

Adding to 312132232122 its reverse (221232231213), we get a palindrome (533364463335).

Subtracting from 312132232122 its reverse (221232231213), we obtain a palindrome (90900000909).

The spelling of 312132232122 in words is "three hundred twelve billion, one hundred thirty-two million, two hundred thirty-two thousand, one hundred twenty-two".