120127400836 has 9 divisors (see below), whose sum is σ = 210224164549. Its totient is φ = 60063353824.

The previous prime is 120127400803. The next prime is 120127400893. The reversal of 120127400836 is 638004721021.

The square root of 120127400836 is 346594.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2791008900 + 117336391936 = 52830^2 + 342544^2 .

It is a super-2 number, since 2×120127400836² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 2 ways as a sum of consecutive naturals, for example, 606540 + ... + 779836.

Almost surely, 2^120127400836 is an apocalyptic number.

120127400836 is the 346594-th square number.

It is an amenable number.

120127400836 is a deficient number, since it is larger than the sum of its proper divisors (90096763713).

120127400836 is an frugal number, since it uses more digits than its factorization.

120127400836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346598 (or 173299 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 120127400836 in words is "one hundred twenty billion, one hundred twenty-seven million, four hundred thousand, eight hundred thirty-six".