12131961322 has 16 divisors (see below), whose sum is σ = 19685675520. Its totient is φ = 5574254832.

The previous prime is 12131961319. The next prime is 12131961353. The reversal of 12131961322 is 22316913121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040422 + ... + 1052017.

It is an arithmetic number, because the mean of its divisors is an integer number (1230354720).

Almost surely, 2^12131961322 is an apocalyptic number.

12131961322 is a deficient number, since it is larger than the sum of its proper divisors (7553714198).

12131961322 is a wasteful number, since it uses less digits than its factorization.

12131961322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092677.

The product of its digits is 3888, while the sum is 31.

The spelling of 12131961322 in words is "twelve billion, one hundred thirty-one million, nine hundred sixty-one thousand, three hundred twenty-two".