1130312331 has 12 divisors (see below), whose sum is σ = 1633249800. Its totient is φ = 753275520.

The previous prime is 1130312317. The next prime is 1130312333. The reversal of 1130312331 is 1332130311.

It is a happy number.

It is not a de Polignac number, because 1130312331 - 2⁷ = 1130312203 is a prime.

It is a super-2 number, since 2×1130312331² = 2555211931221307122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1130312333) 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, 6720 + ... + 48018.

It is an arithmetic number, because the mean of its divisors is an integer number (136104150).

Almost surely, 2^1130312331 is an apocalyptic number.

1130312331 is a deficient number, since it is larger than the sum of its proper divisors (502937469).

1130312331 is a wasteful number, since it uses less digits than its factorization.

1130312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44346 (or 44343 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1130312331 is about 33620.1179504177. The cubic root of 1130312331 is about 1041.6763924368.

Adding to 1130312331 its reverse (1332130311), we get a palindrome (2462442642).

The spelling of 1130312331 in words is "one billion, one hundred thirty million, three hundred twelve thousand, three hundred thirty-one".