231213003 has 16 divisors (see below), whose sum is σ = 354439680. Its totient is φ = 131328576.

The previous prime is 231212987. The next prime is 231213007. The reversal of 231213003 is 300312132.

231213003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231213003 - 2⁴ = 231212987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231213007) 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, 29458 + ... + 36471.

It is an arithmetic number, because the mean of its divisors is an integer number (22152480).

Almost surely, 2^231213003 is an apocalyptic number.

231213003 is a deficient number, since it is larger than the sum of its proper divisors (123226677).

231213003 is a wasteful number, since it uses less digits than its factorization.

231213003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66106.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 231213003 is about 15205.6898232208. The cubic root of 231213003 is about 613.7677779772.

Adding to 231213003 its reverse (300312132), we get a palindrome (531525135).

The spelling of 231213003 in words is "two hundred thirty-one million, two hundred thirteen thousand, three".