123113403242 has 16 divisors (see below), whose sum is σ = 185017996800. Its totient is φ = 61440782832.

The previous prime is 123113403241. The next prime is 123113403247. The reversal of 123113403242 is 242304311321.

It is a super-3 number, since 3×123113403242³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (123113403241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8058503 + ... + 8073765.

It is an arithmetic number, because the mean of its divisors is an integer number (11563624800).

Almost surely, 2^123113403242 is an apocalyptic number.

123113403242 is a deficient number, since it is larger than the sum of its proper divisors (61904593558).

123113403242 is a wasteful number, since it uses less digits than its factorization.

123113403242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22597.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 123113403242 its reverse (242304311321), we get a palindrome (365417714563).

The spelling of 123113403242 in words is "one hundred twenty-three billion, one hundred thirteen million, four hundred three thousand, two hundred forty-two".