23212021323 has 8 divisors (see below), whose sum is σ = 32769912528. Its totient is φ = 14564405504.

The previous prime is 23212021309. The next prime is 23212021331. The reversal of 23212021323 is 32312021232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23212021323 - 2⁸ = 23212021067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23212021323.

It is not an unprimeable number, because it can be changed into a prime (23212020323) 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, 227568786 + ... + 227568887.

It is an arithmetic number, because the mean of its divisors is an integer number (4096239066).

Almost surely, 2^23212021323 is an apocalyptic number.

23212021323 is a deficient number, since it is larger than the sum of its proper divisors (9557891205).

23212021323 is a wasteful number, since it uses less digits than its factorization.

23212021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455137693.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23212021323 its reverse (32312021232), we get a palindrome (55524042555).

Subtracting 23212021323 from its reverse (32312021232), we obtain a palindrome (9099999909).

The spelling of 23212021323 in words is "twenty-three billion, two hundred twelve million, twenty-one thousand, three hundred twenty-three".