21412315303 has 8 divisors (see below), whose sum is σ = 23199116688. Its totient is φ = 19684097664.

The previous prime is 21412315261. The next prime is 21412315369. The reversal of 21412315303 is 30351321412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21412315303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412310303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14645176 + ... + 14646637.

It is an arithmetic number, because the mean of its divisors is an integer number (2899889586).

Almost surely, 2^21412315303 is an apocalyptic number.

21412315303 is a deficient number, since it is larger than the sum of its proper divisors (1786801385).

21412315303 is a wasteful number, since it uses less digits than its factorization.

21412315303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29291873.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 21412315303 its reverse (30351321412), we get a palindrome (51763636715).

The spelling of 21412315303 in words is "twenty-one billion, four hundred twelve million, three hundred fifteen thousand, three hundred three".