215103143304 has 96 divisors (see below), whose sum is σ = 666375690240. Its totient is φ = 61404480000.

The previous prime is 215103143251. The next prime is 215103143323. The reversal of 215103143304 is 403341301512.

It is a happy number.

215103143304 is a `hidden beast` number, since 2 + 1 + 5 + 10 + 314 + 330 + 4 = 666.

It is a super-2 number, since 2×215103143304² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394704 + ... + 765504.

It is an arithmetic number, because the mean of its divisors is an integer number (6941413440).

Almost surely, 2^215103143304 is an apocalyptic number.

215103143304 is a gapful number since it is divisible by the number (24) 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 215103143304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333187845120).

215103143304 is an abundant number, since it is smaller than the sum of its proper divisors (451272546936).

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

215103143304 is a wasteful number, since it uses less digits than its factorization.

215103143304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371971 (or 371964 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 215103143304 its reverse (403341301512), we get a palindrome (618444444816).

The spelling of 215103143304 in words is "two hundred fifteen billion, one hundred three million, one hundred forty-three thousand, three hundred four".