113011131 has 4 divisors (see below), whose sum is σ = 150681512. Its totient is φ = 75340752.

The previous prime is 113011127. The next prime is 113011133. The reversal of 113011131 is 131110311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 113011131 - 2² = 113011127 is a prime.

It is a super-2 number, since 2×113011131² = 25543031459798322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113011133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18835186 + ... + 18835191.

It is an arithmetic number, because the mean of its divisors is an integer number (37670378).

Almost surely, 2^113011131 is an apocalyptic number.

113011131 is a deficient number, since it is larger than the sum of its proper divisors (37670381).

113011131 is an equidigital number, since it uses as much as digits as its factorization.

113011131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37670380.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 113011131 is about 10630.6693580414. The cubic root of 113011131 is about 483.4746864674.

Adding to 113011131 its reverse (131110311), we get a palindrome (244121442).

The spelling of 113011131 in words is "one hundred thirteen million, eleven thousand, one hundred thirty-one".