21334043030 has 16 divisors (see below), whose sum is σ = 40422397680. Its totient is φ = 8084479392.

The previous prime is 21334042979. The next prime is 21334043039. The reversal of 21334043030 is 3034043312.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21334042987 and 21334043005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21334043039) 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, 56142029 + ... + 56142408.

It is an arithmetic number, because the mean of its divisors is an integer number (2526399855).

Almost surely, 2^21334043030 is an apocalyptic number.

21334043030 is a deficient number, since it is larger than the sum of its proper divisors (19088354650).

21334043030 is a wasteful number, since it uses less digits than its factorization.

21334043030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112284463.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 21334043030 its reverse (3034043312), we get a palindrome (24368086342).

The spelling of 21334043030 in words is "twenty-one billion, three hundred thirty-four million, forty-three thousand, thirty".