231003012 has 24 divisors (see below), whose sum is σ = 540486016. Its totient is φ = 76789728.

The previous prime is 231002999. The next prime is 231003013. The reversal of 231003012 is 210300132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (231003013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21823 + ... + 30630.

Almost surely, 2^231003012 is an apocalyptic number.

It is an amenable number.

231003012 is an abundant number, since it is smaller than the sum of its proper divisors (309483004).

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

231003012 is a wasteful number, since it uses less digits than its factorization.

231003012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52827 (or 52825 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 231003012 is about 15198.7832407729. The cubic root of 231003012 is about 613.5819107666.

Adding to 231003012 its reverse (210300132), we get a palindrome (441303144).

The spelling of 231003012 in words is "two hundred thirty-one million, three thousand, twelve".