13113211963 has 2 divisors, whose sum is σ = 13113211964. Its totient is φ = 13113211962.

The previous prime is 13113211933. The next prime is 13113212039. The reversal of 13113211963 is 36911231131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13113211963 is a prime.

It is not a weakly prime, because it can be changed into another prime (13113211933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556605981 + 6556605982.

It is an arithmetic number, because the mean of its divisors is an integer number (6556605982).

Almost surely, 2^13113211963 is an apocalyptic number.

13113211963 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113211963 is an equidigital number, since it uses as much as digits as its factorization.

13113211963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 31.

The spelling of 13113211963 in words is "thirteen billion, one hundred thirteen million, two hundred eleven thousand, nine hundred sixty-three".