120907138889 has 2 divisors, whose sum is σ = 120907138890. Its totient is φ = 120907138888.

The previous prime is 120907138841. The next prime is 120907138909. The reversal of 120907138889 is 988831709021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85462675600 + 35444463289 = 292340^2 + 188267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120907138889 is a prime.

It is not a weakly prime, because it can be changed into another prime (120907138819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60453569444 + 60453569445.

It is an arithmetic number, because the mean of its divisors is an integer number (60453569445).

Almost surely, 2^120907138889 is an apocalyptic number.

It is an amenable number.

120907138889 is a deficient number, since it is larger than the sum of its proper divisors (1).

120907138889 is an equidigital number, since it uses as much as digits as its factorization.

120907138889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 56.

The spelling of 120907138889 in words is "one hundred twenty billion, nine hundred seven million, one hundred thirty-eight thousand, eight hundred eighty-nine".