21320114250 has 32 divisors (see below), whose sum is σ = 53215007040. Its totient is φ = 5685363600.

The previous prime is 21320114219. The next prime is 21320114279. The reversal of 21320114250 is 5241102312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14212660 + ... + 14214159.

It is an arithmetic number, because the mean of its divisors is an integer number (1662968970).

Almost surely, 2^21320114250 is an apocalyptic number.

21320114250 is an abundant number, since it is smaller than the sum of its proper divisors (31894892790).

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

21320114250 is a wasteful number, since it uses less digits than its factorization.

21320114250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28426839 (or 28426829 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21320114250 its reverse (5241102312), we get a palindrome (26561216562).

The spelling of 21320114250 in words is "twenty-one billion, three hundred twenty million, one hundred fourteen thousand, two hundred fifty".