21223796283 has 32 divisors (see below), whose sum is σ = 31663661120. Its totient is φ = 14049987840.

The previous prime is 21223796267. The next prime is 21223796291. The reversal of 21223796283 is 38269732212.

21223796283 is a `hidden beast` number, since 2 + 12 + 2 + 3 + 7 + 9 + 628 + 3 = 666.

It is not a de Polignac number, because 21223796283 - 2⁴ = 21223796267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21223796203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3696591 + ... + 3702327.

It is an arithmetic number, because the mean of its divisors is an integer number (989489410).

Almost surely, 2^21223796283 is an apocalyptic number.

21223796283 is a deficient number, since it is larger than the sum of its proper divisors (10439864837).

21223796283 is a wasteful number, since it uses less digits than its factorization.

21223796283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684 (or 6678 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 21223796283 in words is "twenty-one billion, two hundred twenty-three million, seven hundred ninety-six thousand, two hundred eighty-three".