1113889131 has 8 divisors (see below), whose sum is σ = 1650206160. Its totient is φ = 742592736.

The previous prime is 1113889129. The next prime is 1113889141. The reversal of 1113889131 is 1319883111.

It is not a de Polignac number, because 1113889131 - 2¹ = 1113889129 is a prime.

It is a super-2 number, since 2×1113889131² = 2481497992319870322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1113889111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20627550 + ... + 20627603.

It is an arithmetic number, because the mean of its divisors is an integer number (206275770).

Almost surely, 2^1113889131 is an apocalyptic number.

1113889131 is a deficient number, since it is larger than the sum of its proper divisors (536317029).

1113889131 is an equidigital number, since it uses as much as digits as its factorization.

1113889131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41255162 (or 41255156 counting only the distinct ones).

The product of its digits is 5184, while the sum is 36.

The square root of 1113889131 is about 33374.9776179700. The cubic root of 1113889131 is about 1036.6066456268.

The spelling of 1113889131 in words is "one billion, one hundred thirteen million, eight hundred eighty-nine thousand, one hundred thirty-one".