120421142 has 8 divisors (see below), whose sum is σ = 180686376. Its totient is φ = 60192352.

The previous prime is 120421109. The next prime is 120421151. The reversal of 120421142 is 241124021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 120421142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1733 + ... + 15615.

It is an arithmetic number, because the mean of its divisors is an integer number (22585797).

Almost surely, 2^120421142 is an apocalyptic number.

120421142 is a deficient number, since it is larger than the sum of its proper divisors (60265234).

120421142 is a wasteful number, since it uses less digits than its factorization.

120421142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18222.

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

The square root of 120421142 is about 10973.6567287299. The cubic root of 120421142 is about 493.8187553241.

Adding to 120421142 its reverse (241124021), we get a palindrome (361545163).

The spelling of 120421142 in words is "one hundred twenty million, four hundred twenty-one thousand, one hundred forty-two".