123134004042 has 24 divisors (see below), whose sum is σ = 286475030496. Its totient is φ = 35181143928.

The previous prime is 123134004023. The next prime is 123134004043. The reversal of 123134004042 is 240400431321.

It is not an unprimeable number, because it can be changed into a prime (123134004043) 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, 209411278 + ... + 209411865.

It is an arithmetic number, because the mean of its divisors is an integer number (11936459604).

Almost surely, 2^123134004042 is an apocalyptic number.

123134004042 is an abundant number, since it is smaller than the sum of its proper divisors (163341026454).

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

123134004042 is a wasteful number, since it uses less digits than its factorization.

123134004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418823162 (or 418823155 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 123134004042 its reverse (240400431321), we get a palindrome (363534435363).

The spelling of 123134004042 in words is "one hundred twenty-three billion, one hundred thirty-four million, four thousand, forty-two".