1231112330 has 64 divisors (see below), whose sum is σ = 2606204160. Its totient is φ = 409920000.

The previous prime is 1231112327. The next prime is 1231112339. The reversal of 1231112330 is 332111321.

It is a junction number, because it is equal to n+sod(n) for n = 1231112299 and 1231112308.

It is not an unprimeable number, because it can be changed into a prime (1231112339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 719516 + ... + 721224.

It is an arithmetic number, because the mean of its divisors is an integer number (40721940).

Almost surely, 2^1231112330 is an apocalyptic number.

1231112330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231112330 is an abundant number, since it is smaller than the sum of its proper divisors (1375091830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231112330 is a wasteful number, since it uses less digits than its factorization.

1231112330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1231112330 is about 35087.2103479316. The cubic root of 1231112330 is about 1071.7641523974.

Adding to 1231112330 its reverse (332111321), we get a palindrome (1563223651).

The spelling of 1231112330 in words is "one billion, two hundred thirty-one million, one hundred twelve thousand, three hundred thirty".