22003212323 has 4 divisors (see below), whose sum is σ = 22003900800. Its totient is φ = 22002523848.

The previous prime is 22003212317. The next prime is 22003212347. The reversal of 22003212323 is 32321230022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22003212323 - 2¹⁶ = 22003146787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22003212295 and 22003212304.

It is not an unprimeable number, because it can be changed into a prime (22003212923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293840 + ... + 361037.

It is an arithmetic number, because the mean of its divisors is an integer number (5500975200).

Almost surely, 2^22003212323 is an apocalyptic number.

22003212323 is a deficient number, since it is larger than the sum of its proper divisors (688477).

22003212323 is an equidigital number, since it uses as much as digits as its factorization.

22003212323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688476.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 22003212323 its reverse (32321230022), we get a palindrome (54324442345).

The spelling of 22003212323 in words is "twenty-two billion, three million, two hundred twelve thousand, three hundred twenty-three".