120451042 has 4 divisors (see below), whose sum is σ = 180676566. Its totient is φ = 60225520.

The previous prime is 120451031. The next prime is 120451049. The reversal of 120451042 is 240154021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240154021 = 71 ⋅3382451.

It can be written as a sum of positive squares in only one way, i.e., 61606801 + 58844241 = 7849^2 + 7671^2 .

It is not an unprimeable number, because it can be changed into a prime (120451049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30112759 + ... + 30112762.

Almost surely, 2^120451042 is an apocalyptic number.

120451042 is a deficient number, since it is larger than the sum of its proper divisors (60225524).

120451042 is an equidigital number, since it uses as much as digits as its factorization.

120451042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60225523.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 120451042 is about 10975.0189977057. The cubic root of 120451042 is about 493.8596228956.

The spelling of 120451042 in words is "one hundred twenty million, four hundred fifty-one thousand, forty-two".