1313022131 has 2 divisors, whose sum is σ = 1313022132. Its totient is φ = 1313022130.

The previous prime is 1313022097. The next prime is 1313022197. The reversal of 1313022131 is 1312203131.

It is a weak prime.

It is an emirp because it is prime and its reverse (1312203131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313022131 is a prime.

It is a super-2 number, since 2×1313022131² = 3448054232991562322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1313022031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656511065 + 656511066.

It is an arithmetic number, because the mean of its divisors is an integer number (656511066).

Almost surely, 2^1313022131 is an apocalyptic number.

1313022131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313022131 is an equidigital number, since it uses as much as digits as its factorization.

1313022131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1313022131 is about 36235.6472413561. The cubic root of 1313022131 is about 1095.0249519275.

Adding to 1313022131 its reverse (1312203131), we get a palindrome (2625225262).

The spelling of 1313022131 in words is "one billion, three hundred thirteen million, twenty-two thousand, one hundred thirty-one".