21410202320 has 40 divisors (see below), whose sum is σ = 53607855336. Its totient is φ = 7905305088.

The previous prime is 21410202299. The next prime is 21410202367. The reversal of 21410202320 is 2320201412.

It can be written as a sum of positive squares in 4 ways, for example, as 1426421824 + 19983780496 = 37768^2 + 141364^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 10292327 + ... + 10294406.

Almost surely, 2^21410202320 is an apocalyptic number.

21410202320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21410202320 is an abundant number, since it is smaller than the sum of its proper divisors (32197653016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21410202320 is a wasteful number, since it uses less digits than its factorization.

21410202320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20586759 (or 20586753 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21410202320 its reverse (2320201412), we get a palindrome (23730403732).

The spelling of 21410202320 in words is "twenty-one billion, four hundred ten million, two hundred two thousand, three hundred twenty".