231202321223 has 2 divisors, whose sum is σ = 231202321224. Its totient is φ = 231202321222.

The previous prime is 231202321201. The next prime is 231202321247. The reversal of 231202321223 is 322123202132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231202321223 - 2¹⁸ = 231202059079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231202321423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115601160611 + 115601160612.

It is an arithmetic number, because the mean of its divisors is an integer number (115601160612).

Almost surely, 2^231202321223 is an apocalyptic number.

231202321223 is a deficient number, since it is larger than the sum of its proper divisors (1).

231202321223 is an equidigital number, since it uses as much as digits as its factorization.

231202321223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 231202321223 its reverse (322123202132), we get a palindrome (553325523355).

The spelling of 231202321223 in words is "two hundred thirty-one billion, two hundred two million, three hundred twenty-one thousand, two hundred twenty-three".