231322103 has 2 divisors, whose sum is σ = 231322104. Its totient is φ = 231322102.

The previous prime is 231322097. The next prime is 231322139. The reversal of 231322103 is 301223132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231322103 - 2⁴ = 231322087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231322153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115661051 + 115661052.

It is an arithmetic number, because the mean of its divisors is an integer number (115661052).

Almost surely, 2^231322103 is an apocalyptic number.

231322103 is a deficient number, since it is larger than the sum of its proper divisors (1).

231322103 is an equidigital number, since it uses as much as digits as its factorization.

231322103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231322103 is about 15209.2768730140. The cubic root of 231322103 is about 613.8643001368.

Adding to 231322103 its reverse (301223132), we get a palindrome (532545235).

The spelling of 231322103 in words is "two hundred thirty-one million, three hundred twenty-two thousand, one hundred three".