120012142 has 8 divisors (see below), whose sum is σ = 182705256. Its totient is φ = 59110392.

The previous prime is 120012131. The next prime is 120012143. The reversal of 120012142 is 241210021.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447673 + ... + 447940.

It is an arithmetic number, because the mean of its divisors is an integer number (22838157).

Almost surely, 2^120012142 is an apocalyptic number.

120012142 is a deficient number, since it is larger than the sum of its proper divisors (62693114).

120012142 is an equidigital number, since it uses as much as digits as its factorization.

120012142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895682.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 120012142 is about 10955.0053400261. The cubic root of 120012142 is about 493.2590502756.

Adding to 120012142 its reverse (241210021), we get a palindrome (361222163).

The spelling of 120012142 in words is "one hundred twenty million, twelve thousand, one hundred forty-two".