1312336511 has 2 divisors, whose sum is σ = 1312336512. Its totient is φ = 1312336510.

The previous prime is 1312336477. The next prime is 1312336513. The reversal of 1312336511 is 1156332131.

It is a strong prime.

It is an emirp because it is prime and its reverse (1156332131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312336511 - 2¹⁴ = 1312320127 is a prime.

Together with 1312336513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312336513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656168255 + 656168256.

It is an arithmetic number, because the mean of its divisors is an integer number (656168256).

Almost surely, 2^1312336511 is an apocalyptic number.

1312336511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312336511 is an equidigital number, since it uses as much as digits as its factorization.

1312336511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 26.

The square root of 1312336511 is about 36226.1854326397. The cubic root of 1312336511 is about 1094.8343225633.

Adding to 1312336511 its reverse (1156332131), we get a palindrome (2468668642).

The spelling of 1312336511 in words is "one billion, three hundred twelve million, three hundred thirty-six thousand, five hundred eleven".