13123150511 has 2 divisors, whose sum is σ = 13123150512. Its totient is φ = 13123150510.

The previous prime is 13123150487. The next prime is 13123150517. The reversal of 13123150511 is 11505132131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123150511 is a prime.

It is a super-2 number, since 2×13123150511² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13123150517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561575255 + 6561575256.

It is an arithmetic number, because the mean of its divisors is an integer number (6561575256).

Almost surely, 2^13123150511 is an apocalyptic number.

13123150511 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123150511 is an equidigital number, since it uses as much as digits as its factorization.

13123150511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 23.

Adding to 13123150511 its reverse (11505132131), we get a palindrome (24628282642).

The spelling of 13123150511 in words is "thirteen billion, one hundred twenty-three million, one hundred fifty thousand, five hundred eleven".