123034405242 has 64 divisors (see below), whose sum is σ = 300303360000. Its totient is φ = 32845659840.

The previous prime is 123034405231. The next prime is 123034405261. The reversal of 123034405242 is 242504430321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1591492 + ... + 1667007.

It is an arithmetic number, because the mean of its divisors is an integer number (4692240000).

Almost surely, 2^123034405242 is an apocalyptic number.

123034405242 is an abundant number, since it is smaller than the sum of its proper divisors (177268954758).

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

123034405242 is a wasteful number, since it uses less digits than its factorization.

123034405242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258571.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 123034405242 its reverse (242504430321), we get a palindrome (365538835563).

The spelling of 123034405242 in words is "one hundred twenty-three billion, thirty-four million, four hundred five thousand, two hundred forty-two".