21303223319 has 32 divisors (see below), whose sum is σ = 24929648640. Its totient is φ = 17828312832.

The previous prime is 21303223307. The next prime is 21303223327. The reversal of 21303223319 is 91332230312.

It is a cyclic number.

It is not a de Polignac number, because 21303223319 - 2⁸ = 21303223063 is a prime.

It is a super-2 number, since 2×21303223319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21303223291 and 21303223300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303273319) 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, 41852837 + ... + 41853345.

It is an arithmetic number, because the mean of its divisors is an integer number (779051520).

Almost surely, 2^21303223319 is an apocalyptic number.

21303223319 is a deficient number, since it is larger than the sum of its proper divisors (3626425321).

21303223319 is a wasteful number, since it uses less digits than its factorization.

21303223319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 21303223319 in words is "twenty-one billion, three hundred three million, two hundred twenty-three thousand, three hundred nineteen".