21023333404 has 24 divisors (see below), whose sum is σ = 37522100448. Its totient is φ = 10303126080.

The previous prime is 21023333393. The next prime is 21023333413. The reversal of 21023333404 is 40433332012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167889 + ... + 265015.

It is an arithmetic number, because the mean of its divisors is an integer number (1563420852).

Almost surely, 2^21023333404 is an apocalyptic number.

It is an amenable number.

21023333404 is a deficient number, since it is larger than the sum of its proper divisors (16498767044).

21023333404 is a wasteful number, since it uses less digits than its factorization.

21023333404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98205 (or 98203 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21023333404 its reverse (40433332012), we get a palindrome (61456665416).

The spelling of 21023333404 in words is "twenty-one billion, twenty-three million, three hundred thirty-three thousand, four hundred four".