120123542242 has 16 divisors (see below), whose sum is σ = 196571326752. Its totient is φ = 54600073920.

The previous prime is 120123542233. The next prime is 120123542299. The reversal of 120123542242 is 242245321021.

It is a self number, because there is not a number n which added to its sum of digits gives 120123542242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1179658 + ... + 1277434.

It is an arithmetic number, because the mean of its divisors is an integer number (12285707922).

Almost surely, 2^120123542242 is an apocalyptic number.

120123542242 is a deficient number, since it is larger than the sum of its proper divisors (76447784510).

120123542242 is a wasteful number, since it uses less digits than its factorization.

120123542242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153633.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 120123542242 its reverse (242245321021), we get a palindrome (362368863263).

The spelling of 120123542242 in words is "one hundred twenty billion, one hundred twenty-three million, five hundred forty-two thousand, two hundred forty-two".