231231001020223 has 2 divisors, whose sum is σ = 231231001020224. Its totient is φ = 231231001020222.

The previous prime is 231231001020181. The next prime is 231231001020241. The reversal of 231231001020223 is 322020100132132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231231001020223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231231001020194 and 231231001020203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231231001020323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115615500510111 + 115615500510112.

It is an arithmetic number, because the mean of its divisors is an integer number (115615500510112).

Almost surely, 2^{231231001020223} is an apocalyptic number.

231231001020223 is a deficient number, since it is larger than the sum of its proper divisors (1).

231231001020223 is an equidigital number, since it uses as much as digits as its factorization.

231231001020223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231231001020223 its reverse (322020100132132), we get a palindrome (553251101152355).

The spelling of 231231001020223 in words is "two hundred thirty-one trillion, two hundred thirty-one billion, one million, twenty thousand, two hundred twenty-three".