21345482310 has 64 divisors (see below), whose sum is σ = 51617157120. Its totient is φ = 5649091200.

The previous prime is 21345482293. The next prime is 21345482339. The reversal of 21345482310 is 1328454312.

It is a super-2 number, since 2×21345482310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7849131 + ... + 7851849.

It is an arithmetic number, because the mean of its divisors is an integer number (806518080).

Almost surely, 2^21345482310 is an apocalyptic number.

21345482310 is an abundant number, since it is smaller than the sum of its proper divisors (30271674810).

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

21345482310 is a wasteful number, since it uses less digits than its factorization.

21345482310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 21345482310 in words is "twenty-one billion, three hundred forty-five million, four hundred eighty-two thousand, three hundred ten".