123131043234 has 48 divisors (see below), whose sum is σ = 267313872384. Its totient is φ = 40962240000.

The previous prime is 123131043209. The next prime is 123131043307. The reversal of 123131043234 is 432340131321.

It is a happy number.

123131043234 is a `hidden beast` number, since 1 + 23 + 1 + 310 + 4 + 323 + 4 = 666.

It is a super-2 number, since 2×123131043234² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123131043198 and 123131043207.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24867459 + ... + 24872409.

It is an arithmetic number, because the mean of its divisors is an integer number (5569039008).

Almost surely, 2^123131043234 is an apocalyptic number.

123131043234 is an abundant number, since it is smaller than the sum of its proper divisors (144182829150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123131043234 is a wasteful number, since it uses less digits than its factorization.

123131043234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7423 (or 7420 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 123131043234 its reverse (432340131321), we get a palindrome (555471174555).

The spelling of 123131043234 in words is "one hundred twenty-three billion, one hundred thirty-one million, forty-three thousand, two hundred thirty-four".