231012003 has 16 divisors (see below), whose sum is σ = 316892160. Its totient is φ = 149618496.

The previous prime is 231011987. The next prime is 231012007. The reversal of 231012003 is 300210132.

It is a happy number.

It is not a de Polignac number, because 231012003 - 2⁴ = 231011987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231012003.

It is not an unprimeable number, because it can be changed into a prime (231012007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13338 + ... + 25296.

It is an arithmetic number, because the mean of its divisors is an integer number (19805760).

Almost surely, 2^231012003 is an apocalyptic number.

231012003 is a deficient number, since it is larger than the sum of its proper divisors (85880157).

231012003 is a wasteful number, since it uses less digits than its factorization.

231012003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12146.

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

The square root of 231012003 is about 15199.0790181511. The cubic root of 231012003 is about 613.5898711871.

Adding to 231012003 its reverse (300210132), we get a palindrome (531222135).

The spelling of 231012003 in words is "two hundred thirty-one million, twelve thousand, three".