21323000030 has 32 divisors (see below), whose sum is σ = 39027381120. Its totient is φ = 8386709760.

The previous prime is 21322999991. The next prime is 21323000033. The reversal of 21323000030 is 3000032312.

It is a junction number, because it is equal to n+sod(n) for n = 21322999969 and 21323000014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323000033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94907 + ... + 227273.

It is an arithmetic number, because the mean of its divisors is an integer number (1219605660).

Almost surely, 2^21323000030 is an apocalyptic number.

21323000030 is a deficient number, since it is larger than the sum of its proper divisors (17704381090).

21323000030 is a wasteful number, since it uses less digits than its factorization.

21323000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132644.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 21323000030 its reverse (3000032312), we get a palindrome (24323032342).

The spelling of 21323000030 in words is "twenty-one billion, three hundred twenty-three million, thirty", and thus it is an aban number.