21230411404 has 24 divisors (see below), whose sum is σ = 37933620480. Its totient is φ = 10394132496.

The previous prime is 21230411399. The next prime is 21230411413. The reversal of 21230411404 is 40411403212.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192424 + ... + 281935.

It is an arithmetic number, because the mean of its divisors is an integer number (1580567520).

Almost surely, 2^21230411404 is an apocalyptic number.

It is an amenable number.

21230411404 is a deficient number, since it is larger than the sum of its proper divisors (16703209076).

21230411404 is a wasteful number, since it uses less digits than its factorization.

21230411404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474597 (or 474595 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21230411404 its reverse (40411403212), we get a palindrome (61641814616).

The spelling of 21230411404 in words is "twenty-one billion, two hundred thirty million, four hundred eleven thousand, four hundred four".