120401913 has 12 divisors (see below), whose sum is σ = 161438064. Its totient is φ = 79819200.

The previous prime is 120401909. The next prime is 120401933. The reversal of 120401913 is 319104021.

It is not a de Polignac number, because 120401913 - 2² = 120401909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120401913.

It is not an unprimeable number, because it can be changed into a prime (120401903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173898 + ... + 174588.

It is an arithmetic number, because the mean of its divisors is an integer number (13453172).

Almost surely, 2^120401913 is an apocalyptic number.

It is an amenable number.

120401913 is a deficient number, since it is larger than the sum of its proper divisors (41036151).

120401913 is an frugal number, since it uses more digits than its factorization.

120401913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 120401913 is about 10972.7805500703. The cubic root of 120401913 is about 493.7924693908.

Adding to 120401913 its reverse (319104021), we get a palindrome (439505934).

The spelling of 120401913 in words is "one hundred twenty million, four hundred one thousand, nine hundred thirteen".