21314210302 has 32 divisors (see below), whose sum is σ = 39871399680. Its totient is φ = 8301934080.

The previous prime is 21314210299. The next prime is 21314210321. The reversal of 21314210302 is 20301241312.

It is a happy number.

It is a super-3 number, since 3×21314210302³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21314210302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602974 + ... + 637342.

It is an arithmetic number, because the mean of its divisors is an integer number (1245981240).

Almost surely, 2^21314210302 is an apocalyptic number.

21314210302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21314210302 is a deficient number, since it is larger than the sum of its proper divisors (18557189378).

21314210302 is a wasteful number, since it uses less digits than its factorization.

21314210302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38416.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21314210302 its reverse (20301241312), we get a palindrome (41615451614).

The spelling of 21314210302 in words is "twenty-one billion, three hundred fourteen million, two hundred ten thousand, three hundred two".