231313312003 has 2 divisors, whose sum is σ = 231313312004. Its totient is φ = 231313312002.

The previous prime is 231313312001. The next prime is 231313312037. The reversal of 231313312003 is 300213313132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231313312003 - 2¹ = 231313312001 is a prime.

Together with 231313312001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (231313312001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115656656001 + 115656656002.

It is an arithmetic number, because the mean of its divisors is an integer number (115656656002).

Almost surely, 2^231313312003 is an apocalyptic number.

231313312003 is a deficient number, since it is larger than the sum of its proper divisors (1).

231313312003 is an equidigital number, since it uses as much as digits as its factorization.

231313312003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231313312003 its reverse (300213313132), we get a palindrome (531526625135).

The spelling of 231313312003 in words is "two hundred thirty-one billion, three hundred thirteen million, three hundred twelve thousand, three".