120241551540 has 48 divisors (see below), whose sum is σ = 367283286720. Its totient is φ = 29149466880.

The previous prime is 120241551539. The next prime is 120241551589. The reversal of 120241551540 is 45155142021.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 120241551498 and 120241551507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91091425 + ... + 91092744.

It is an arithmetic number, because the mean of its divisors is an integer number (7651735140).

Almost surely, 2^120241551540 is an apocalyptic number.

120241551540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120241551540 is an abundant number, since it is smaller than the sum of its proper divisors (247041735180).

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

120241551540 is a wasteful number, since it uses less digits than its factorization.

120241551540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182184192 (or 182184190 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 120241551540 its reverse (45155142021), we get a palindrome (165396693561).

The spelling of 120241551540 in words is "one hundred twenty billion, two hundred forty-one million, five hundred fifty-one thousand, five hundred forty".