123012240124242 has 64 divisors (see below), whose sum is σ = 284745684787200. Its totient is φ = 34699547188800.

The previous prime is 123012240124183. The next prime is 123012240124247. The reversal of 123012240124242 is 242421042210321.

It is a super-2 number, since 2×123012240124242² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123012240124247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59601867 + ... + 61631217.

It is an arithmetic number, because the mean of its divisors is an integer number (4449151324800).

Almost surely, 2^{123012240124242} is an apocalyptic number.

123012240124242 is an abundant number, since it is smaller than the sum of its proper divisors (161733444662958).

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

123012240124242 is a wasteful number, since it uses less digits than its factorization.

123012240124242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047711.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 123012240124242 its reverse (242421042210321), we get a palindrome (365433282334563).

The spelling of 123012240124242 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty million, one hundred twenty-four thousand, two hundred forty-two".