1113288631 has 16 divisors (see below), whose sum is σ = 1371763008. Its totient is φ = 879840000.

The previous prime is 1113288607. The next prime is 1113288643. The reversal of 1113288631 is 1368823111.

It is a happy number.

It is not a de Polignac number, because 1113288631 - 2¹¹ = 1113286583 is a prime.

It is a super-2 number, since 2×1113288631² = 2478823151827708322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113288601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79131 + ... + 92131.

It is an arithmetic number, because the mean of its divisors is an integer number (85735188).

Almost surely, 2^1113288631 is an apocalyptic number.

1113288631 is a deficient number, since it is larger than the sum of its proper divisors (258474377).

1113288631 is a wasteful number, since it uses less digits than its factorization.

1113288631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13962.

The product of its digits is 6912, while the sum is 34.

The square root of 1113288631 is about 33365.9801444525. The cubic root of 1113288631 is about 1036.4203331931.

The spelling of 1113288631 in words is "one billion, one hundred thirteen million, two hundred eighty-eight thousand, six hundred thirty-one".