120916270129 has 2 divisors, whose sum is σ = 120916270130. Its totient is φ = 120916270128.

The previous prime is 120916270109. The next prime is 120916270201. The reversal of 120916270129 is 921072619021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90765420529 + 30150849600 = 301273^2 + 173640^2 .

It is a cyclic number.

It is not a de Polignac number, because 120916270129 - 2²⁷ = 120782052401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120916270091 and 120916270100.

It is not a weakly prime, because it can be changed into another prime (120916270109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60458135064 + 60458135065.

It is an arithmetic number, because the mean of its divisors is an integer number (60458135065).

Almost surely, 2^120916270129 is an apocalyptic number.

It is an amenable number.

120916270129 is a deficient number, since it is larger than the sum of its proper divisors (1).

120916270129 is an equidigital number, since it uses as much as digits as its factorization.

120916270129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 120916270129 in words is "one hundred twenty billion, nine hundred sixteen million, two hundred seventy thousand, one hundred twenty-nine".