113161311 has 24 divisors (see below), whose sum is σ = 171040896. Its totient is φ = 71958480.

The previous prime is 113161303. The next prime is 113161327.

113161311 is a `hidden beast` number, since 11 + 31 + 613 + 11 = 666.

113161311 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 113161311 - 2³ = 113161303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113163311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116056 + ... + 117026.

It is an arithmetic number, because the mean of its divisors is an integer number (7126704).

Almost surely, 2^113161311 is an apocalyptic number.

113161311 is a deficient number, since it is larger than the sum of its proper divisors (57879585).

113161311 is a wasteful number, since it uses less digits than its factorization.

113161311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563 (or 1560 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

The square root of 113161311 is about 10637.7305380424. The cubic root of 113161311 is about 483.6887541395.

The spelling of 113161311 in words is "one hundred thirteen million, one hundred sixty-one thousand, three hundred eleven".