1312232102989 has 2 divisors, whose sum is σ = 1312232102990. Its totient is φ = 1312232102988.

The previous prime is 1312232102983. The next prime is 1312232103101. The reversal of 1312232102989 is 9892012322131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1308575844900 + 3656258089 = 1143930^2 + 60467^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312232102989 - 2⁵ = 1312232102957 is a prime.

It is a super-2 number, since 2×1312232102989² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312232102983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656116051494 + 656116051495.

It is an arithmetic number, because the mean of its divisors is an integer number (656116051495).

Almost surely, 2^{1312232102989} is an apocalyptic number.

It is an amenable number.

1312232102989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312232102989 is an equidigital number, since it uses as much as digits as its factorization.

1312232102989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 1312232102989 in words is "one trillion, three hundred twelve billion, two hundred thirty-two million, one hundred two thousand, nine hundred eighty-nine".