120478331 has 2 divisors, whose sum is σ = 120478332. Its totient is φ = 120478330.

The previous prime is 120478313. The next prime is 120478339. The reversal of 120478331 is 133874021.

Together with previous prime (120478313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (133874021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120478331 is a prime.

It is a super-2 number, since 2×120478331² = 29030056481091122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 120478294 and 120478303.

It is not a weakly prime, because it can be changed into another prime (120478339) 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, 60239165 + 60239166.

It is an arithmetic number, because the mean of its divisors is an integer number (60239166).

Almost surely, 2^120478331 is an apocalyptic number.

120478331 is a deficient number, since it is larger than the sum of its proper divisors (1).

120478331 is an equidigital number, since it uses as much as digits as its factorization.

120478331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 120478331 is about 10976.2621597701. The cubic root of 120478331 is about 493.8969158278.

The spelling of 120478331 in words is "one hundred twenty million, four hundred seventy-eight thousand, three hundred thirty-one".