1312232103731 has 2 divisors, whose sum is σ = 1312232103732. Its totient is φ = 1312232103730.

The previous prime is 1312232103727. The next prime is 1312232103799. The reversal of 1312232103731 is 1373012322131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312232103731 - 2² = 1312232103727 is a prime.

It is a super-2 number, since 2×1312232103731² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312232103694 and 1312232103703.

It is not a weakly prime, because it can be changed into another prime (1312232105731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656116051865 + 656116051866.

It is an arithmetic number, because the mean of its divisors is an integer number (656116051866).

Almost surely, 2^{1312232103731} is an apocalyptic number.

1312232103731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312232103731 is an equidigital number, since it uses as much as digits as its factorization.

1312232103731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 1312232103731 its reverse (1373012322131), we get a palindrome (2685244425862).

The spelling of 1312232103731 in words is "one trillion, three hundred twelve billion, two hundred thirty-two million, one hundred three thousand, seven hundred thirty-one".