120402343042 has 4 divisors (see below), whose sum is σ = 180603514566. Its totient is φ = 60201171520.

The previous prime is 120402343007. The next prime is 120402343091. The reversal of 120402343042 is 240343204021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 78349048281 + 42053294761 = 279909^2 + 205069^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120402342998 and 120402343016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30100585759 + ... + 30100585762.

Almost surely, 2^120402343042 is an apocalyptic number.

120402343042 is a deficient number, since it is larger than the sum of its proper divisors (60201171524).

120402343042 is an equidigital number, since it uses as much as digits as its factorization.

120402343042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60201171523.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 120402343042 its reverse (240343204021), we get a palindrome (360745547063).

The spelling of 120402343042 in words is "one hundred twenty billion, four hundred two million, three hundred forty-three thousand, forty-two".