21321200302 has 16 divisors (see below), whose sum is σ = 32224427424. Its totient is φ = 10579860000.

The previous prime is 21321200291. The next prime is 21321200321. The reversal of 21321200302 is 20300212312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287152 + ... + 353692.

It is an arithmetic number, because the mean of its divisors is an integer number (2014026714).

Almost surely, 2^21321200302 is an apocalyptic number.

21321200302 is a deficient number, since it is larger than the sum of its proper divisors (10903227122).

21321200302 is a wasteful number, since it uses less digits than its factorization.

21321200302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67755.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21321200302 its reverse (20300212312), we get a palindrome (41621412614).

The spelling of 21321200302 in words is "twenty-one billion, three hundred twenty-one million, two hundred thousand, three hundred two".