123021312434223 has 16 divisors (see below), whose sum is σ = 187908448600320. Its totient is φ = 70130117414016.

The previous prime is 123021312434203. The next prime is 123021312434227. The reversal of 123021312434223 is 322434213120321.

It is a happy number.

It is not a de Polignac number, because 123021312434223 - 2⁸ = 123021312433967 is a prime.

It is a super-2 number, since 2×123021312434223² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021312434227) 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, 6990632890 + ... + 6990650487.

It is an arithmetic number, because the mean of its divisors is an integer number (11744278037520).

Almost surely, 2^{123021312434223} is an apocalyptic number.

123021312434223 is a deficient number, since it is larger than the sum of its proper divisors (64887136166097).

123021312434223 is a wasteful number, since it uses less digits than its factorization.

123021312434223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13981283806.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 123021312434223 its reverse (322434213120321), we get a palindrome (445455525554544).

The spelling of 123021312434223 in words is "one hundred twenty-three trillion, twenty-one billion, three hundred twelve million, four hundred thirty-four thousand, two hundred twenty-three".