120642001 has 16 divisors (see below), whose sum is σ = 131947200. Its totient is φ = 109867968.

The previous prime is 120641981. The next prime is 120642017. The reversal of 120642001 is 100246021.

It is a cyclic number.

It is not a de Polignac number, because 120642001 - 2¹³ = 120633809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120642031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205230 + ... + 205816.

It is an arithmetic number, because the mean of its divisors is an integer number (8246700).

Almost surely, 2^120642001 is an apocalyptic number.

It is an amenable number.

120642001 is a deficient number, since it is larger than the sum of its proper divisors (11305199).

120642001 is a wasteful number, since it uses less digits than its factorization.

120642001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120642001 is about 10983.7152639715. The cubic root of 120642001 is about 494.1204678691.

Adding to 120642001 its reverse (100246021), we get a palindrome (220888022).

The spelling of 120642001 in words is "one hundred twenty million, six hundred forty-two thousand, one".