123023431134 has 48 divisors (see below), whose sum is σ = 268061322672. Its totient is φ = 40775664384.

The previous prime is 123023431133. The next prime is 123023431169. The reversal of 123023431134 is 431134320321.

It is a happy number.

123023431134 is a `hidden beast` number, since 1 + 2 + 302 + 343 + 1 + 13 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 123023431098 and 123023431107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123023431133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6632397 + ... + 6650919.

It is an arithmetic number, because the mean of its divisors is an integer number (5584610889).

Almost surely, 2^123023431134 is an apocalyptic number.

123023431134 is an abundant number, since it is smaller than the sum of its proper divisors (145037891538).

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

123023431134 is a wasteful number, since it uses less digits than its factorization.

123023431134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20601 (or 20598 counting only the distinct ones).

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

Adding to 123023431134 its reverse (431134320321), we get a palindrome (554157751455).

The spelling of 123023431134 in words is "one hundred twenty-three billion, twenty-three million, four hundred thirty-one thousand, one hundred thirty-four".