120151231 has 8 divisors (see below), whose sum is σ = 126719600. Its totient is φ = 113607360.

The previous prime is 120151169. The next prime is 120151237. The reversal of 120151231 is 132151021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120151231 is a prime.

It is a super-2 number, since 2×120151231² = 28872636621630722, 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 (120151237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4435 + ... + 16123.

It is an arithmetic number, because the mean of its divisors is an integer number (15839950).

Almost surely, 2^120151231 is an apocalyptic number.

120151231 is a deficient number, since it is larger than the sum of its proper divisors (6568369).

120151231 is a wasteful number, since it uses less digits than its factorization.

120151231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12249.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 120151231 is about 10961.3516958448. The cubic root of 120151231 is about 493.4495321712.

The spelling of 120151231 in words is "one hundred twenty million, one hundred fifty-one thousand, two hundred thirty-one".