50997231113 has 2 divisors, whose sum is σ = 50997231114. Its totient is φ = 50997231112.

The previous prime is 50997231097. The next prime is 50997231191. The reversal of 50997231113 is 31113279905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48994937104 + 2002294009 = 221348^2 + 44747^2 .

It is a cyclic number.

It is not a de Polignac number, because 50997231113 - 2⁴ = 50997231097 is a prime.

It is not a weakly prime, because it can be changed into another prime (50997231613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25498615556 + 25498615557.

It is an arithmetic number, because the mean of its divisors is an integer number (25498615557).

Almost surely, 2^50997231113 is an apocalyptic number.

It is an amenable number.

50997231113 is a deficient number, since it is larger than the sum of its proper divisors (1).

50997231113 is an equidigital number, since it uses as much as digits as its factorization.

50997231113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 41.

The spelling of 50997231113 in words is "fifty billion, nine hundred ninety-seven million, two hundred thirty-one thousand, one hundred thirteen".