3131212312122 has 32 divisors (see below), whose sum is σ = 6317898048000. Its totient is φ = 1034511232560.

The previous prime is 3131212312117. The next prime is 3131212312147. The reversal of 3131212312122 is 2212132121313.

It is a super-2 number, since 2×3131212312122² (a number of 26 digits) contains 22 as substring.

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 = 3131212312092 and 3131212312101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1773372 + ... + 3067127.

It is an arithmetic number, because the mean of its divisors is an integer number (197434314000).

Almost surely, 2^{3131212312122} is an apocalyptic number.

3131212312122 is an abundant number, since it is smaller than the sum of its proper divisors (3186685735878).

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

3131212312122 is a wasteful number, since it uses less digits than its factorization.

3131212312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4841458.

The product of its digits is 864, while the sum is 24.

Adding to 3131212312122 its reverse (2212132121313), we get a palindrome (5343344433435).

The spelling of 3131212312122 in words is "three trillion, one hundred thirty-one billion, two hundred twelve million, three hundred twelve thousand, one hundred twenty-two".