120500381 has 6 divisors (see below), whose sum is σ = 125967870. Its totient is φ = 115260728.

The previous prime is 120500363. The next prime is 120500383. The reversal of 120500381 is 183005021.

It can be written as a sum of positive squares in only one way, i.e., 116856100 + 3644281 = 10810^2 + 1909^2 .

It is a de Polignac number, because none of the positive numbers 2^k-120500381 is a prime.

It is a super-2 number, since 2×120500381² = 29040683642290322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120500383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113366 + ... + 114423.

It is an arithmetic number, because the mean of its divisors is an integer number (20994645).

Almost surely, 2^120500381 is an apocalyptic number.

It is an amenable number.

120500381 is a deficient number, since it is larger than the sum of its proper divisors (5467489).

120500381 is an equidigital number, since it uses as much as digits as its factorization.

120500381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227835 (or 227812 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 120500381 is about 10977.2665541108. The cubic root of 120500381 is about 493.9270450706.

The spelling of 120500381 in words is "one hundred twenty million, five hundred thousand, three hundred eighty-one".