231321003923 has 2 divisors, whose sum is σ = 231321003924. Its totient is φ = 231321003922.

The previous prime is 231321003871. The next prime is 231321003961. The reversal of 231321003923 is 329300123132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231321003923 - 2¹² = 231320999827 is a prime.

It is not a weakly prime, because it can be changed into another prime (231321003973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115660501961 + 115660501962.

It is an arithmetic number, because the mean of its divisors is an integer number (115660501962).

Almost surely, 2^231321003923 is an apocalyptic number.

231321003923 is a deficient number, since it is larger than the sum of its proper divisors (1).

231321003923 is an equidigital number, since it uses as much as digits as its factorization.

231321003923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 231321003923 in words is "two hundred thirty-one billion, three hundred twenty-one million, three thousand, nine hundred twenty-three".