123203230310311 has 12 divisors (see below), whose sum is σ = 130929710942752. Its totient is φ = 115909092004608.

The previous prime is 123203230310309. The next prime is 123203230310371. The reversal of 123203230310311 is 113013032302321.

It is not a de Polignac number, because 123203230310311 - 2¹ = 123203230310309 is a prime.

It is a super-3 number, since 3×123203230310311³ (a number of 43 digits) contains 333 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 (123203230310371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85477935 + ... + 86907328.

Almost surely, 2^{123203230310311} is an apocalyptic number.

123203230310311 is a deficient number, since it is larger than the sum of its proper divisors (7726480632441).

123203230310311 is a wasteful number, since it uses less digits than its factorization.

123203230310311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172387770 (or 172387753 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 123203230310311 its reverse (113013032302321), we get a palindrome (236216262612632).

The spelling of 123203230310311 in words is "one hundred twenty-three trillion, two hundred three billion, two hundred thirty million, three hundred ten thousand, three hundred eleven".