15103152120 has 128 divisors (see below), whose sum is σ = 52028259840. Its totient is φ = 3435747840.

The previous prime is 15103152109. The next prime is 15103152157. The reversal of 15103152120 is 2125130151.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 134634 + ... + 219846.

It is an arithmetic number, because the mean of its divisors is an integer number (406470780).

Almost surely, 2^15103152120 is an apocalyptic number.

15103152120 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 15103152120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26014129920).

15103152120 is an abundant number, since it is smaller than the sum of its proper divisors (36925107720).

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

15103152120 is a wasteful number, since it uses less digits than its factorization.

15103152120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85445 (or 85441 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 15103152120 its reverse (2125130151), we get a palindrome (17228282271).

The spelling of 15103152120 in words is "fifteen billion, one hundred three million, one hundred fifty-two thousand, one hundred twenty".