1168994331 has 12 divisors (see below), whose sum is σ = 1688899680. Its totient is φ = 779166960.

The previous prime is 1168994303. The next prime is 1168994353. The reversal of 1168994331 is 1334998611.

It is not a de Polignac number, because 1168994331 - 2¹¹ = 1168992283 is a prime.

It is a super-2 number, since 2×1168994331² = 2733095491820275122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1168994381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45550 + ... + 66428.

It is an arithmetic number, because the mean of its divisors is an integer number (140741640).

Almost surely, 2^1168994331 is an apocalyptic number.

1168994331 is a deficient number, since it is larger than the sum of its proper divisors (519905349).

1168994331 is a wasteful number, since it uses less digits than its factorization.

1168994331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27106 (or 27103 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 1168994331 is about 34190.5590916557. The cubic root of 1168994331 is about 1053.4262471338.

The spelling of 1168994331 in words is "one billion, one hundred sixty-eight million, nine hundred ninety-four thousand, three hundred thirty-one".