120142442 has 16 divisors (see below), whose sum is σ = 206122560. Its totient is φ = 51448608.

The previous prime is 120142427. The next prime is 120142493. The reversal of 120142442 is 244241021.

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, 20609 + ... + 25787.

It is an arithmetic number, because the mean of its divisors is an integer number (12882660).

Almost surely, 2^120142442 is an apocalyptic number.

120142442 is a deficient number, since it is larger than the sum of its proper divisors (85980118).

120142442 is a wasteful number, since it uses less digits than its factorization.

120142442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6845.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 120142442 is about 10960.9507799278. The cubic root of 120142442 is about 493.4375000191.

Adding to 120142442 its reverse (244241021), we get a palindrome (364383463).

The spelling of 120142442 in words is "one hundred twenty million, one hundred forty-two thousand, four hundred forty-two".