120302138 has 16 divisors (see below), whose sum is σ = 197077536. Its totient is φ = 54621840.

The previous prime is 120302131. The next prime is 120302177. The reversal of 120302138 is 831203021.

It is not an unprimeable number, because it can be changed into a prime (120302131) 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, 21545 + ... + 26547.

It is an arithmetic number, because the mean of its divisors is an integer number (12317346).

Almost surely, 2^120302138 is an apocalyptic number.

120302138 is a deficient number, since it is larger than the sum of its proper divisors (76775398).

120302138 is a wasteful number, since it uses less digits than its factorization.

120302138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6109.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 120302138 is about 10968.2331302722. The cubic root of 120302138 is about 493.6560325798.

Adding to 120302138 its reverse (831203021), we get a palindrome (951505159).

The spelling of 120302138 in words is "one hundred twenty million, three hundred two thousand, one hundred thirty-eight".