123021000320313 has 16 divisors (see below), whose sum is σ = 170975535752000. Its totient is φ = 78606399554496.

The previous prime is 123021000320293. The next prime is 123021000320321. The reversal of 123021000320313 is 313023000120321.

It is not a de Polignac number, because 123021000320313 - 2¹⁶ = 123021000254777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123021000320313.

It is not an unprimeable number, because it can be changed into a prime (123021000320213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8270867938 + ... + 8270882811.

It is an arithmetic number, because the mean of its divisors is an integer number (10685970984500).

Almost surely, 2^{123021000320313} is an apocalyptic number.

It is an amenable number.

123021000320313 is a deficient number, since it is larger than the sum of its proper divisors (47954535431687).

123021000320313 is a wasteful number, since it uses less digits than its factorization.

123021000320313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16541750856.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123021000320313 its reverse (313023000120321), we get a palindrome (436044000440634).

The spelling of 123021000320313 in words is "one hundred twenty-three trillion, twenty-one billion, three hundred twenty thousand, three hundred thirteen".