123423400304132 has 24 divisors (see below), whose sum is σ = 217090269013464. Its totient is φ = 61397617578752.

The previous prime is 123423400304131. The next prime is 123423400304143. The reversal of 123423400304132 is 231403004324321.

It can be written as a sum of positive squares in 4 ways, for example, as 53551455508996 + 69871944795136 = 7317886^2 + 8358944^2 .

It is a super-2 number, since 2×123423400304132² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123423400304131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59848808 + ... + 61876704.

It is an arithmetic number, because the mean of its divisors is an integer number (9045427875561).

Almost surely, 2^{123423400304132} is an apocalyptic number.

It is an amenable number.

123423400304132 is a deficient number, since it is larger than the sum of its proper divisors (93666868709332).

123423400304132 is a wasteful number, since it uses less digits than its factorization.

123423400304132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105335 (or 2105333 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 123423400304132 its reverse (231403004324321), we get a palindrome (354826404628453).

The spelling of 123423400304132 in words is "one hundred twenty-three trillion, four hundred twenty-three billion, four hundred million, three hundred four thousand, one hundred thirty-two".