123013203135242 has 32 divisors (see below), whose sum is σ = 210911425536000. Its totient is φ = 52712032784688.

The previous prime is 123013203135241. The next prime is 123013203135247. The reversal of 123013203135242 is 242531302310321.

123013203135242 is digitally balanced in base 3 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123013203135199 and 123013203135208.

It is not an unprimeable number, because it can be changed into a prime (123013203135241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4349970059 + ... + 4349998337.

It is an arithmetic number, because the mean of its divisors is an integer number (6590982048000).

Almost surely, 2^{123013203135242} is an apocalyptic number.

123013203135242 is a deficient number, since it is larger than the sum of its proper divisors (87898222400758).

123013203135242 is a wasteful number, since it uses less digits than its factorization.

123013203135242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63930.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 123013203135242 its reverse (242531302310321), we get a palindrome (365544505445563).

The spelling of 123013203135242 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, one hundred thirty-five thousand, two hundred forty-two".