15120140120 has 64 divisors (see below), whose sum is σ = 34541303040. Its totient is φ = 5955644800.

The previous prime is 15120140083. The next prime is 15120140159. The reversal of 15120140120 is 2104102151.

It is a super-2 number, since 2×15120140120² (a number of 21 digits) contains 22 as substring.

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, 2754899 + ... + 2760381.

It is an arithmetic number, because the mean of its divisors is an integer number (539707860).

Almost surely, 2^15120140120 is an apocalyptic number.

15120140120 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 15120140120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17270651520).

15120140120 is an abundant number, since it is smaller than the sum of its proper divisors (19421162920).

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

15120140120 is a wasteful number, since it uses less digits than its factorization.

15120140120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536 (or 6532 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 15120140120 its reverse (2104102151), we get a palindrome (17224242271).

The spelling of 15120140120 in words is "fifteen billion, one hundred twenty million, one hundred forty thousand, one hundred twenty".