120028331 has 2 divisors, whose sum is σ = 120028332. Its totient is φ = 120028330.

The previous prime is 120028277. The next prime is 120028343. The reversal of 120028331 is 133820021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120028331 - 2⁶ = 120028267 is a prime.

It is a super-2 number, since 2×120028331² = 28813600485291122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120228331) 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 as a sum of consecutive naturals, namely, 60014165 + 60014166.

It is an arithmetic number, because the mean of its divisors is an integer number (60014166).

Almost surely, 2^120028331 is an apocalyptic number.

120028331 is a deficient number, since it is larger than the sum of its proper divisors (1).

120028331 is an equidigital number, since it uses as much as digits as its factorization.

120028331 is an odious number, because the sum of its binary digits is odd.

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

The square root of 120028331 is about 10955.7442011029. The cubic root of 120028331 is about 493.2812286197.

Adding to 120028331 its reverse (133820021), we get a palindrome (253848352).

The spelling of 120028331 in words is "one hundred twenty million, twenty-eight thousand, three hundred thirty-one".