1312204022131 has 4 divisors (see below), whose sum is σ = 1325196141264. Its totient is φ = 1299211903000.

The previous prime is 1312204022123. The next prime is 1312204022159.

1312204022131 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312204022131 - 2³ = 1312204022123 is a prime.

It is a super-2 number, since 2×1312204022131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312204023131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6496059415 + ... + 6496059616.

It is an arithmetic number, because the mean of its divisors is an integer number (331299035316).

Almost surely, 2^{1312204022131} is an apocalyptic number.

1312204022131 is a deficient number, since it is larger than the sum of its proper divisors (12992119133).

1312204022131 is a wasteful number, since it uses less digits than its factorization.

1312204022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12992119132.

The product of its (nonzero) digits is 576, while the sum is 22.

Multiplying 1312204022131 by its sum of digits (22), we get a palindrome (28868488486882).

The spelling of 1312204022131 in words is "one trillion, three hundred twelve billion, two hundred four million, twenty-two thousand, one hundred thirty-one".