1312103011511 has 2 divisors, whose sum is σ = 1312103011512. Its totient is φ = 1312103011510.

The previous prime is 1312103011481. The next prime is 1312103011553. The reversal of 1312103011511 is 1151103012131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312103011511 - 2²⁶ = 1312035902647 is a prime.

It is a super-2 number, since 2×1312103011511² (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 (1312103011811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656051505755 + 656051505756.

It is an arithmetic number, because the mean of its divisors is an integer number (656051505756).

Almost surely, 2^{1312103011511} is an apocalyptic number.

1312103011511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312103011511 is an equidigital number, since it uses as much as digits as its factorization.

1312103011511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 20.

Adding to 1312103011511 its reverse (1151103012131), we get a palindrome (2463206023642).

The spelling of 1312103011511 in words is "one trillion, three hundred twelve billion, one hundred three million, eleven thousand, five hundred eleven".