21203022223323 has 24 divisors (see below), whose sum is σ = 30657855865520. Its totient is φ = 14120923622400.

The previous prime is 21203022223321. The next prime is 21203022223333. The reversal of 21203022223323 is 32332222030212.

21203022223323 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 302 + 2 + 22 + 332 + 3 = 666.

It is not a de Polignac number, because 21203022223323 - 2¹ = 21203022223321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21203022223321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36561423 + ... + 37136823.

Almost surely, 2^{21203022223323} is an apocalyptic number.

21203022223323 is a deficient number, since it is larger than the sum of its proper divisors (9454833642197).

21203022223323 is a wasteful number, since it uses less digits than its factorization.

21203022223323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579579 (or 579576 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 21203022223323 its reverse (32332222030212), we get a palindrome (53535244253535).

The spelling of 21203022223323 in words is "twenty-one trillion, two hundred three billion, twenty-two million, two hundred twenty-three thousand, three hundred twenty-three".