231322322003 has 4 divisors (see below), whose sum is σ = 241379814288. Its totient is φ = 221264829720.

The previous prime is 231322321961. The next prime is 231322322009. The reversal of 231322322003 is 300223223132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231322322003 - 2¹⁰ = 231322320979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 10057492261 = 231322322003 / (2 + 3 + 1 + 3 + 2 + 2 + 3 + 2 + 2 + 0 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231322322003.

It is not an unprimeable number, because it can be changed into a prime (231322322009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5028746108 + ... + 5028746153.

It is an arithmetic number, because the mean of its divisors is an integer number (60344953572).

Almost surely, 2^231322322003 is an apocalyptic number.

231322322003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

231322322003 is a deficient number, since it is larger than the sum of its proper divisors (10057492285).

231322322003 is a wasteful number, since it uses less digits than its factorization.

231322322003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057492284.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 231322322003 its reverse (300223223132), we get a palindrome (531545545135).

The spelling of 231322322003 in words is "two hundred thirty-one billion, three hundred twenty-two million, three hundred twenty-two thousand, three".