120101638 has 8 divisors (see below), whose sum is σ = 183985632. Its totient is φ = 58773096.

The previous prime is 120101621. The next prime is 120101647. The reversal of 120101638 is 836101021.

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

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, 638745 + ... + 638932.

It is an arithmetic number, because the mean of its divisors is an integer number (22998204).

Almost surely, 2^120101638 is an apocalyptic number.

120101638 is a deficient number, since it is larger than the sum of its proper divisors (63883994).

120101638 is a wasteful number, since it uses less digits than its factorization.

120101638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277726.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 120101638 is about 10959.0892869800. The cubic root of 120101638 is about 493.3816316036.

Adding to 120101638 its reverse (836101021), we get a palindrome (956202659).

The spelling of 120101638 in words is "one hundred twenty million, one hundred one thousand, six hundred thirty-eight".