123021121321333 has 2 divisors, whose sum is σ = 123021121321334. Its totient is φ = 123021121321332.

The previous prime is 123021121321327. The next prime is 123021121321363. The reversal of 123021121321333 is 333123121120321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104146249912849 + 18874871408484 = 10205207^2 + 4344522^2 .

It is a cyclic number.

It is not a de Polignac number, because 123021121321333 - 2¹³ = 123021121313141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123021121321313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61510560660666 + 61510560660667.

It is an arithmetic number, because the mean of its divisors is an integer number (61510560660667).

Almost surely, 2^{123021121321333} is an apocalyptic number.

It is an amenable number.

123021121321333 is a deficient number, since it is larger than the sum of its proper divisors (1).

123021121321333 is an equidigital number, since it uses as much as digits as its factorization.

123021121321333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 123021121321333 its reverse (333123121120321), we get a palindrome (456144242441654).

The spelling of 123021121321333 in words is "one hundred twenty-three trillion, twenty-one billion, one hundred twenty-one million, three hundred twenty-one thousand, three hundred thirty-three".