402191101913 has 2 divisors, whose sum is σ = 402191101914. Its totient is φ = 402191101912.

The previous prime is 402191101901. The next prime is 402191101919. The reversal of 402191101913 is 319101191204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375857277184 + 26333824729 = 613072^2 + 162277^2 .

It is a cyclic number.

It is not a de Polignac number, because 402191101913 - 2²⁴ = 402174324697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402191101913.

It is not a weakly prime, because it can be changed into another prime (402191101919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201095550956 + 201095550957.

It is an arithmetic number, because the mean of its divisors is an integer number (201095550957).

Almost surely, 2^402191101913 is an apocalyptic number.

It is an amenable number.

402191101913 is a deficient number, since it is larger than the sum of its proper divisors (1).

402191101913 is an equidigital number, since it uses as much as digits as its factorization.

402191101913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 32.

The spelling of 402191101913 in words is "four hundred two billion, one hundred ninety-one million, one hundred one thousand, nine hundred thirteen".