123321203311013 has 2 divisors, whose sum is σ = 123321203311014. Its totient is φ = 123321203311012.

The previous prime is 123321203310971. The next prime is 123321203311021. The reversal of 123321203311013 is 310113302123321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103262646683329 + 20058556627684 = 10161823^2 + 4478678^2 .

It is a cyclic number.

It is not a de Polignac number, because 123321203311013 - 2²⁸ = 123320934875557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123321203311043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61660601655506 + 61660601655507.

It is an arithmetic number, because the mean of its divisors is an integer number (61660601655507).

Almost surely, 2^{123321203311013} is an apocalyptic number.

It is an amenable number.

123321203311013 is a deficient number, since it is larger than the sum of its proper divisors (1).

123321203311013 is an equidigital number, since it uses as much as digits as its factorization.

123321203311013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 123321203311013 its reverse (310113302123321), we get a palindrome (433434505434334).

The spelling of 123321203311013 in words is "one hundred twenty-three trillion, three hundred twenty-one billion, two hundred three million, three hundred eleven thousand, thirteen".