1231162330 has 32 divisors (see below), whose sum is σ = 2242753920. Its totient is φ = 486565440.

The previous prime is 1231162327. The next prime is 1231162349. The reversal of 1231162330 is 332611321.

It is a super-2 number, since 2×1231162330² = 3031521365622057800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468420 + ... + 471040.

It is an arithmetic number, because the mean of its divisors is an integer number (70086060).

Almost surely, 2^1231162330 is an apocalyptic number.

1231162330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231162330 is a deficient number, since it is larger than the sum of its proper divisors (1011591590).

1231162330 is a wasteful number, since it uses less digits than its factorization.

1231162330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1231162330 is about 35087.9228510324. The cubic root of 1231162330 is about 1071.7786616291.

Adding to 1231162330 its reverse (332611321), we get a palindrome (1563773651).

The spelling of 1231162330 in words is "one billion, two hundred thirty-one million, one hundred sixty-two thousand, three hundred thirty".