1231330012 has 24 divisors (see below), whose sum is σ = 2362550400. Its totient is φ = 556878960.

The previous prime is 1231330007. The next prime is 1231330019. The reversal of 1231330012 is 2100331321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231330019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61558 + ... + 79069.

It is an arithmetic number, because the mean of its divisors is an integer number (98439600).

Almost surely, 2^1231330012 is an apocalyptic number.

It is an amenable number.

1231330012 is a deficient number, since it is larger than the sum of its proper divisors (1131220388).

1231330012 is a wasteful number, since it uses less digits than its factorization.

1231330012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140841 (or 140839 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1231330012 is about 35090.3122243163. The cubic root of 1231330012 is about 1071.8273175014.

Adding to 1231330012 its reverse (2100331321), we get a palindrome (3331661333).

The spelling of 1231330012 in words is "one billion, two hundred thirty-one million, three hundred thirty thousand, twelve".