1231023008 has 12 divisors (see below), whose sum is σ = 2423576610. Its totient is φ = 615511488.

The previous prime is 1231023007. The next prime is 1231023067. The reversal of 1231023008 is 8003201321.

It can be written as a sum of positive squares in only one way, i.e., 1116361744 + 114661264 = 33412^2 + 10708^2 .

It is not an unprimeable number, because it can be changed into a prime (1231023007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19234703 + ... + 19234766.

Almost surely, 2^1231023008 is an apocalyptic number.

It is an amenable number.

1231023008 is a deficient number, since it is larger than the sum of its proper divisors (1192553602).

1231023008 is an equidigital number, since it uses as much as digits as its factorization.

1231023008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38469479 (or 38469471 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1231023008 is about 35085.9374678802. The cubic root of 1231023008 is about 1071.7382315477.

Adding to 1231023008 its reverse (8003201321), we get a palindrome (9234224329).

The spelling of 1231023008 in words is "one billion, two hundred thirty-one million, twenty-three thousand, eight".