21323333019 has 8 divisors (see below), whose sum is σ = 30103529040. Its totient is φ = 13379346176.

The previous prime is 21323332991. The next prime is 21323333023. The reversal of 21323333019 is 91033332312.

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

It is a cyclic number.

It is not a de Polignac number, because 21323333019 - 2¹⁷ = 21323201947 is a prime.

It is a super-2 number, since 2×21323333019² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21323333029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209052234 + ... + 209052335.

It is an arithmetic number, because the mean of its divisors is an integer number (3762941130).

Almost surely, 2^21323333019 is an apocalyptic number.

21323333019 is a deficient number, since it is larger than the sum of its proper divisors (8780196021).

21323333019 is a wasteful number, since it uses less digits than its factorization.

21323333019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418104589.

The product of its (nonzero) digits is 8748, while the sum is 30.

The spelling of 21323333019 in words is "twenty-one billion, three hundred twenty-three million, three hundred thirty-three thousand, nineteen".