120245515261 has 16 divisors (see below), whose sum is σ = 123345750528. Its totient is φ = 117185943600.

The previous prime is 120245515253. The next prime is 120245515277. The reversal of 120245515261 is 162515542021.

It is a cyclic number.

It is not a de Polignac number, because 120245515261 - 2³ = 120245515253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120245515231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7521006 + ... + 7536976.

It is an arithmetic number, because the mean of its divisors is an integer number (7709109408).

Almost surely, 2^120245515261 is an apocalyptic number.

It is an amenable number.

120245515261 is a deficient number, since it is larger than the sum of its proper divisors (3100235267).

120245515261 is a wasteful number, since it uses less digits than its factorization.

120245515261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17232.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 120245515261 in words is "one hundred twenty billion, two hundred forty-five million, five hundred fifteen thousand, two hundred sixty-one".