1161114331 has 24 divisors (see below), whose sum is σ = 1374309504. Its totient is φ = 976135680.

The previous prime is 1161114299. The next prime is 1161114379. The reversal of 1161114331 is 1334111611.

It is not a de Polignac number, because 1161114331 - 2⁵ = 1161114299 is a prime.

It is a super-2 number, since 2×1161114331² = 2696372979307155122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161115331) 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, 82545 + ... + 95581.

It is an arithmetic number, because the mean of its divisors is an integer number (57262896).

Almost surely, 2^1161114331 is an apocalyptic number.

1161114331 is a deficient number, since it is larger than the sum of its proper divisors (213195173).

1161114331 is a wasteful number, since it uses less digits than its factorization.

1161114331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13111 (or 13098 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

The square root of 1161114331 is about 34075.1277473761. The cubic root of 1161114331 is about 1051.0539171562.

Adding to 1161114331 its reverse (1334111611), we get a palindrome (2495225942).

The spelling of 1161114331 in words is "one billion, one hundred sixty-one million, one hundred fourteen thousand, three hundred thirty-one".