120130981 has 2 divisors, whose sum is σ = 120130982. Its totient is φ = 120130980.

The previous prime is 120130979. The next prime is 120130999. The reversal of 120130981 is 189031021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113081956 + 7049025 = 10634^2 + 2655^2 .

It is a cyclic number.

It is not a de Polignac number, because 120130981 - 2¹ = 120130979 is a prime.

It is a super-2 number, since 2×120130981² = 28862905192044722, which contains 22 as substring.

Together with 120130979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120130931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60065490 + 60065491.

It is an arithmetic number, because the mean of its divisors is an integer number (60065491).

Almost surely, 2^120130981 is an apocalyptic number.

It is an amenable number.

120130981 is a deficient number, since it is larger than the sum of its proper divisors (1).

120130981 is an equidigital number, since it uses as much as digits as its factorization.

120130981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 120130981 is about 10960.4279569732. The cubic root of 120130981 is about 493.4218090139.

The spelling of 120130981 in words is "one hundred twenty million, one hundred thirty thousand, nine hundred eighty-one".