15300038012 has 72 divisors (see below), whose sum is σ = 33919678464. Its totient is φ = 5903048448.

The previous prime is 15300038011. The next prime is 15300038023. The reversal of 15300038012 is 21083000351.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15300038011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145013 + ... + 227219.

Almost surely, 2^15300038012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15300038012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16959839232).

15300038012 is an abundant number, since it is smaller than the sum of its proper divisors (18619640452).

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

15300038012 is a wasteful number, since it uses less digits than its factorization.

15300038012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82275 (or 82256 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 15300038012 its reverse (21083000351), we get a palindrome (36383038363).

The spelling of 15300038012 in words is "fifteen billion, three hundred million, thirty-eight thousand, twelve".