21041430322 has 16 divisors (see below), whose sum is σ = 35362012032. Its totient is φ = 9305791920.

The previous prime is 21041430317. The next prime is 21041430323. The reversal of 21041430322 is 22303414012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21041430293 and 21041430302.

It is not an unprimeable number, because it can be changed into a prime (21041430323) by changing a digit.

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, 12923898 + ... + 12925525.

It is an arithmetic number, because the mean of its divisors is an integer number (2210125752).

Almost surely, 2^21041430322 is an apocalyptic number.

21041430322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21041430322 is a deficient number, since it is larger than the sum of its proper divisors (14320581710).

21041430322 is a wasteful number, since it uses less digits than its factorization.

21041430322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25849473.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21041430322 its reverse (22303414012), we get a palindrome (43344844334).

The spelling of 21041430322 in words is "twenty-one billion, forty-one million, four hundred thirty thousand, three hundred twenty-two".