123013203135223 has 2 divisors, whose sum is σ = 123013203135224. Its totient is φ = 123013203135222.

The previous prime is 123013203135209. The next prime is 123013203135241. The reversal of 123013203135223 is 322531302310321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123013203135223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123013203138223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61506601567611 + 61506601567612.

It is an arithmetic number, because the mean of its divisors is an integer number (61506601567612).

Almost surely, 2^{123013203135223} is an apocalyptic number.

123013203135223 is a deficient number, since it is larger than the sum of its proper divisors (1).

123013203135223 is an equidigital number, since it uses as much as digits as its factorization.

123013203135223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 123013203135223 its reverse (322531302310321), we get a palindrome (445544505445544).

The spelling of 123013203135223 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, one hundred thirty-five thousand, two hundred twenty-three".