21442303323 has 36 divisors (see below), whose sum is σ = 36112433448. Its totient is φ = 12224338560.

The previous prime is 21442303321. The next prime is 21442303367. The reversal of 21442303323 is 32330324412.

21442303323 is a `hidden beast` number, since 214 + 423 + 0 + 3 + 3 + 23 = 666.

It is not a de Polignac number, because 21442303323 - 2¹ = 21442303321 is a prime.

It is a super-3 number, since 3×21442303323³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21442303321) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134808 + ... + 247098.

Almost surely, 2^21442303323 is an apocalyptic number.

21442303323 is a deficient number, since it is larger than the sum of its proper divisors (14670130125).

21442303323 is a wasteful number, since it uses less digits than its factorization.

21442303323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112744 (or 112734 counting only the distinct ones).

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

Adding to 21442303323 its reverse (32330324412), we get a palindrome (53772627735).

The spelling of 21442303323 in words is "twenty-one billion, four hundred forty-two million, three hundred three thousand, three hundred twenty-three".