113513006161 has 2 divisors, whose sum is σ = 113513006162. Its totient is φ = 113513006160.

The previous prime is 113513006147. The next prime is 113513006171. The reversal of 113513006161 is 161600315311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112816046161 + 696960000 = 335881^2 + 26400^2 .

It is an emirp because it is prime and its reverse (161600315311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113513006161 - 2⁵ = 113513006129 is a prime.

It is not a weakly prime, because it can be changed into another prime (113513006171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56756503080 + 56756503081.

It is an arithmetic number, because the mean of its divisors is an integer number (56756503081).

Almost surely, 2^113513006161 is an apocalyptic number.

It is an amenable number.

113513006161 is a deficient number, since it is larger than the sum of its proper divisors (1).

113513006161 is an equidigital number, since it uses as much as digits as its factorization.

113513006161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The spelling of 113513006161 in words is "one hundred thirteen billion, five hundred thirteen million, six thousand, one hundred sixty-one".