31322562312146 has 12 divisors (see below), whose sum is σ = 54654675055038. Its totient is φ = 13423955276592.

The previous prime is 31322562312109. The next prime is 31322562312193. The reversal of 31322562312146 is 64121326522313.

It can be written as a sum of positive squares in only one way, i.e., 21136960275025 + 10185602037121 = 4597495^2 + 3191489^2 .

It is a super-2 number, since 2×31322562312146² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159808991291 + ... + 159808991486.

Almost surely, 2^{31322562312146} is an apocalyptic number.

31322562312146 is a deficient number, since it is larger than the sum of its proper divisors (23332112742892).

31322562312146 is a wasteful number, since it uses less digits than its factorization.

31322562312146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319617982793 (or 319617982786 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

Adding to 31322562312146 its reverse (64121326522313), we get a palindrome (95443888834459).

The spelling of 31322562312146 in words is "thirty-one trillion, three hundred twenty-two billion, five hundred sixty-two million, three hundred twelve thousand, one hundred forty-six".