21323223032230 has 32 divisors (see below), whose sum is σ = 46445205128256. Its totient is φ = 6880771129344.

The previous prime is 21323223032203. The next prime is 21323223032291. The reversal of 21323223032230 is 3223032232312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8959336219 + ... + 8959338598.

It is an arithmetic number, because the mean of its divisors is an integer number (1451412660258).

Almost surely, 2^{21323223032230} is an apocalyptic number.

21323223032230 is an abundant number, since it is smaller than the sum of its proper divisors (25121982096026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21323223032230 is a wasteful number, since it uses less digits than its factorization.

21323223032230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17918674848.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 21323223032230 its reverse (3223032232312), we get a palindrome (24546255264542).

The spelling of 21323223032230 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred twenty-three million, thirty-two thousand, two hundred thirty".