21310220014 has 8 divisors (see below), whose sum is σ = 31967861688. Its totient is φ = 10654266120.

The previous prime is 21310220003. The next prime is 21310220021. The reversal of 21310220014 is 41002201312.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21310220014.

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, 389892 + ... + 441175.

It is an arithmetic number, because the mean of its divisors is an integer number (3995982711).

Almost surely, 2^21310220014 is an apocalyptic number.

21310220014 is a deficient number, since it is larger than the sum of its proper divisors (10657641674).

21310220014 is a wasteful number, since it uses less digits than its factorization.

21310220014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843890.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21310220014 its reverse (41002201312), we get a palindrome (62312421326).

The spelling of 21310220014 in words is "twenty-one billion, three hundred ten million, two hundred twenty thousand, fourteen".