120530251 has 2 divisors, whose sum is σ = 120530252. Its totient is φ = 120530250.

The previous prime is 120530213. The next prime is 120530261. The reversal of 120530251 is 152035021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120530251 is a prime.

It is a super-2 number, since 2×120530251² = 29055082812246002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120530261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60265125 + 60265126.

It is an arithmetic number, because the mean of its divisors is an integer number (60265126).

Almost surely, 2^120530251 is an apocalyptic number.

120530251 is a deficient number, since it is larger than the sum of its proper divisors (1).

120530251 is an equidigital number, since it uses as much as digits as its factorization.

120530251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 120530251 is about 10978.6270088750. The cubic root of 120530251 is about 493.9678537437.

Adding to 120530251 its reverse (152035021), we get a palindrome (272565272).

The spelling of 120530251 in words is "one hundred twenty million, five hundred thirty thousand, two hundred fifty-one".