1300120979 has 2 divisors, whose sum is σ = 1300120980. Its totient is φ = 1300120978.

The previous prime is 1300120963. The next prime is 1300121033. The reversal of 1300120979 is 9790210031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1300120979 - 2⁴ = 1300120963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1300120919) 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, 650060489 + 650060490.

It is an arithmetic number, because the mean of its divisors is an integer number (650060490).

Almost surely, 2^1300120979 is an apocalyptic number.

1300120979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300120979 is an equidigital number, since it uses as much as digits as its factorization.

1300120979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 1300120979 is about 36057.1903924862. The cubic root of 1300120979 is about 1091.4267372980.

The spelling of 1300120979 in words is "one billion, three hundred million, one hundred twenty thousand, nine hundred seventy-nine".