1012120120129 has 2 divisors, whose sum is σ = 1012120120130. Its totient is φ = 1012120120128.

The previous prime is 1012120120069. The next prime is 1012120120157. The reversal of 1012120120129 is 9210210212101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 939449439504 + 72670680625 = 969252^2 + 269575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012120120129 - 2⁹ = 1012120119617 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012120120729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506060060064 + 506060060065.

It is an arithmetic number, because the mean of its divisors is an integer number (506060060065).

Almost surely, 2^{1012120120129} is an apocalyptic number.

It is an amenable number.

1012120120129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012120120129 is an equidigital number, since it uses as much as digits as its factorization.

1012120120129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 1012120120129 in words is "one trillion, twelve billion, one hundred twenty million, one hundred twenty thousand, one hundred twenty-nine".