21314172315303 has 24 divisors (see below), whose sum is σ = 35228052907008. Its totient is φ = 12164728068432.

The previous prime is 21314172315287. The next prime is 21314172315311. The reversal of 21314172315303 is 30351327141312.

21314172315303 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 417 + 231 + 5 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 21314172315303 - 2⁴ = 21314172315287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314172315383) 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, 205488975 + ... + 205592672.

It is an arithmetic number, because the mean of its divisors is an integer number (1467835537792).

Almost surely, 2^{21314172315303} is an apocalyptic number.

21314172315303 is a deficient number, since it is larger than the sum of its proper divisors (13913880591705).

21314172315303 is a wasteful number, since it uses less digits than its factorization.

21314172315303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411082483 (or 411082480 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

Adding to 21314172315303 its reverse (30351327141312), we get a palindrome (51665499456615).

The spelling of 21314172315303 in words is "twenty-one trillion, three hundred fourteen billion, one hundred seventy-two million, three hundred fifteen thousand, three hundred three".