1312689023 has 2 divisors, whose sum is σ = 1312689024. Its totient is φ = 1312689022.

The previous prime is 1312689013. The next prime is 1312689029. The reversal of 1312689023 is 3209862131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312689023 - 2¹⁸ = 1312426879 is a prime.

It is a super-2 number, since 2×1312689023² = 3446304942209389058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312689029) 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 as a sum of consecutive naturals, namely, 656344511 + 656344512.

It is an arithmetic number, because the mean of its divisors is an integer number (656344512).

Almost surely, 2^1312689023 is an apocalyptic number.

1312689023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312689023 is an equidigital number, since it uses as much as digits as its factorization.

1312689023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1312689023 is about 36231.0505367979. The cubic root of 1312689023 is about 1094.9323430741.

The spelling of 1312689023 in words is "one billion, three hundred twelve million, six hundred eighty-nine thousand, twenty-three".