15318213000 has 128 divisors (see below), whose sum is σ = 47926494720. Its totient is φ = 4073433600.

The previous prime is 15318212999. The next prime is 15318213007. The reversal of 15318213000 is 31281351.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (15318213007) 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, 1094044 + ... + 1107956.

It is an arithmetic number, because the mean of its divisors is an integer number (374425740).

Almost surely, 2^15318213000 is an apocalyptic number.

15318213000 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 15318213000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23963247360).

15318213000 is an abundant number, since it is smaller than the sum of its proper divisors (32608281720).

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

15318213000 is a wasteful number, since it uses less digits than its factorization.

15318213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14304 (or 14290 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 15318213000 its reverse (31281351), we get a palindrome (15349494351).

The spelling of 15318213000 in words is "fifteen billion, three hundred eighteen million, two hundred thirteen thousand".