120100138 has 16 divisors (see below), whose sum is σ = 196902144. Its totient is φ = 54694080.

The previous prime is 120100103. The next prime is 120100139. The reversal of 120100138 is 831001021.

It is not an unprimeable number, because it can be changed into a prime (120100139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55920 + ... + 58027.

It is an arithmetic number, because the mean of its divisors is an integer number (12306384).

Almost surely, 2^120100138 is an apocalyptic number.

120100138 is a deficient number, since it is larger than the sum of its proper divisors (76802006).

120100138 is a wasteful number, since it uses less digits than its factorization.

120100138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113997.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 120100138 is about 10959.0208504227. The cubic root of 120100138 is about 493.3795775780.

Adding to 120100138 its reverse (831001021), we get a palindrome (951101159).

The spelling of 120100138 in words is "one hundred twenty million, one hundred thousand, one hundred thirty-eight".