21414432303 has 12 divisors (see below), whose sum is σ = 33743954088. Its totient is φ = 12978443760.

The previous prime is 21414432301. The next prime is 21414432323. The reversal of 21414432303 is 30323441412.

21414432303 is a `hidden beast` number, since 214 + 1 + 443 + 2 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 21414432303 - 2¹ = 21414432301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21414432301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108153600 + ... + 108153797.

It is an arithmetic number, because the mean of its divisors is an integer number (2811996174).

Almost surely, 2^21414432303 is an apocalyptic number.

21414432303 is a deficient number, since it is larger than the sum of its proper divisors (12329521785).

21414432303 is a wasteful number, since it uses less digits than its factorization.

21414432303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216307414 (or 216307411 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21414432303 its reverse (30323441412), we get a palindrome (51737873715).

The spelling of 21414432303 in words is "twenty-one billion, four hundred fourteen million, four hundred thirty-two thousand, three hundred three".