120045102520 has 128 divisors (see below), whose sum is σ = 312177162240. Its totient is φ = 40694814720.

The previous prime is 120045102493. The next prime is 120045102533. The reversal of 120045102520 is 25201540021.

It is a junction number, because it is equal to n+sod(n) for n = 120045102491 and 120045102500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13632439 + ... + 13641241.

It is an arithmetic number, because the mean of its divisors is an integer number (2438884080).

Almost surely, 2^120045102520 is an apocalyptic number.

120045102520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120045102520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156088581120).

120045102520 is an abundant number, since it is smaller than the sum of its proper divisors (192132059720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120045102520 is a wasteful number, since it uses less digits than its factorization.

120045102520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9365 (or 9361 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 120045102520 its reverse (25201540021), we get a palindrome (145246642541).

The spelling of 120045102520 in words is "one hundred twenty billion, forty-five million, one hundred two thousand, five hundred twenty".