215203102404 has 24 divisors (see below), whose sum is σ = 502533212160. Its totient is φ = 71678276064.

The previous prime is 215203102403. The next prime is 215203102409. The reversal of 215203102404 is 404201302512.

215203102404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (215203102403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6995439 + ... + 7026134.

It is an arithmetic number, because the mean of its divisors is an integer number (20938883840).

Almost surely, 2^215203102404 is an apocalyptic number.

It is an amenable number.

215203102404 is an abundant number, since it is smaller than the sum of its proper divisors (287330109756).

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

215203102404 is a wasteful number, since it uses less digits than its factorization.

215203102404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14022859 (or 14022857 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 215203102404 its reverse (404201302512), we get a palindrome (619404404916).

The spelling of 215203102404 in words is "two hundred fifteen billion, two hundred three million, one hundred two thousand, four hundred four".