15213442120 has 128 divisors (see below), whose sum is σ = 38257920000. Its totient is φ = 5410824192.

The previous prime is 15213442093. The next prime is 15213442193. The reversal of 15213442120 is 2124431251.

It is a super-2 number, since 2×15213442120² (a number of 21 digits) contains 22 as substring.

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, 5282841 + ... + 5285719.

It is an arithmetic number, because the mean of its divisors is an integer number (298890000).

Almost surely, 2^15213442120 is an apocalyptic number.

15213442120 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 15213442120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19128960000).

15213442120 is an abundant number, since it is smaller than the sum of its proper divisors (23044477880).

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

15213442120 is a wasteful number, since it uses less digits than its factorization.

15213442120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335 (or 3331 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 15213442120 its reverse (2124431251), we get a palindrome (17337873371).

The spelling of 15213442120 in words is "fifteen billion, two hundred thirteen million, four hundred forty-two thousand, one hundred twenty".