123203520422013 has 8 divisors (see below), whose sum is σ = 164272409968576. Its totient is φ = 82135155578400.

The previous prime is 123203520421991. The next prime is 123203520422023. The reversal of 123203520422013 is 310224025302321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-123203520422013 is a prime.

It is a super-2 number, since 2×123203520422013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123203520422023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130627528 + ... + 131567313.

It is an arithmetic number, because the mean of its divisors is an integer number (20534051246072).

Almost surely, 2^{123203520422013} is an apocalyptic number.

It is an amenable number.

123203520422013 is a deficient number, since it is larger than the sum of its proper divisors (41068889546563).

123203520422013 is a wasteful number, since it uses less digits than its factorization.

123203520422013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262351475.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 123203520422013 its reverse (310224025302321), we get a palindrome (433427545724334).

The spelling of 123203520422013 in words is "one hundred twenty-three trillion, two hundred three billion, five hundred twenty million, four hundred twenty-two thousand, thirteen".