21310512110 has 8 divisors (see below), whose sum is σ = 38358921816. Its totient is φ = 8524204840.

The previous prime is 21310512089. The next prime is 21310512121. The reversal of 21310512110 is 1121501312.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065525596 + ... + 1065525615.

It is an arithmetic number, because the mean of its divisors is an integer number (4794865227).

Almost surely, 2^21310512110 is an apocalyptic number.

21310512110 is a deficient number, since it is larger than the sum of its proper divisors (17048409706).

21310512110 is a wasteful number, since it uses less digits than its factorization.

21310512110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131051218.

The product of its (nonzero) digits is 60, while the sum is 17.

The spelling of 21310512110 in words is "twenty-one billion, three hundred ten million, five hundred twelve thousand, one hundred ten".