120412142 has 4 divisors (see below), whose sum is σ = 180618216. Its totient is φ = 60206070.

The previous prime is 120412111. The next prime is 120412151. The reversal of 120412142 is 241214021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241214021 = 127 ⋅1899323.

It is a self number, because there is not a number n which added to its sum of digits gives 120412142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30103034 + ... + 30103037.

It is an arithmetic number, because the mean of its divisors is an integer number (45154554).

Almost surely, 2^120412142 is an apocalyptic number.

120412142 is a deficient number, since it is larger than the sum of its proper divisors (60206074).

120412142 is an equidigital number, since it uses as much as digits as its factorization.

120412142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60206073.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 120412142 is about 10973.2466480983. The cubic root of 120412142 is about 493.8064527238.

Adding to 120412142 its reverse (241214021), we get a palindrome (361626163).

The spelling of 120412142 in words is "one hundred twenty million, four hundred twelve thousand, one hundred forty-two".