120245530521 has 16 divisors (see below), whose sum is σ = 163966464000. Its totient is φ = 78348889488.

The previous prime is 120245530481. The next prime is 120245530529. The reversal of 120245530521 is 125035542021.

It is not a de Polignac number, because 120245530521 - 2²¹ = 120243433369 is a prime.

It is a super-2 number, since 2×120245530521² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120245530529) 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, 491671 + ... + 694428.

It is an arithmetic number, because the mean of its divisors is an integer number (10247904000).

Almost surely, 2^120245530521 is an apocalyptic number.

It is an amenable number.

120245530521 is a deficient number, since it is larger than the sum of its proper divisors (43720933479).

120245530521 is a wasteful number, since it uses less digits than its factorization.

120245530521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186868.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 120245530521 in words is "one hundred twenty billion, two hundred forty-five million, five hundred thirty thousand, five hundred twenty-one".