120373121660 has 96 divisors (see below), whose sum is σ = 277884069120. Its totient is φ = 43436556800.

The previous prime is 120373121639. The next prime is 120373121669. The reversal of 120373121660 is 66121373021.

It is a super-2 number, since 2×120373121660² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120373121669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20514047 + ... + 20519913.

It is an arithmetic number, because the mean of its divisors is an integer number (2894625720).

Almost surely, 2^120373121660 is an apocalyptic number.

120373121660 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 120373121660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138942034560).

120373121660 is an abundant number, since it is smaller than the sum of its proper divisors (157510947460).

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

120373121660 is a wasteful number, since it uses less digits than its factorization.

120373121660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6587 (or 6585 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 120373121660 its reverse (66121373021), we get a palindrome (186494494681).

The spelling of 120373121660 in words is "one hundred twenty billion, three hundred seventy-three million, one hundred twenty-one thousand, six hundred sixty".