23213133321 has 32 divisors (see below), whose sum is σ = 37518412800. Its totient is φ = 12470552640.

The previous prime is 23213133319. The next prime is 23213133403. The reversal of 23213133321 is 12333131232.

It is not a de Polignac number, because 23213133321 - 2¹ = 23213133319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23213133291 and 23213133300.

It is not an unprimeable number, because it can be changed into a prime (23213133721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169786 + ... + 274323.

It is an arithmetic number, because the mean of its divisors is an integer number (1172450400).

Almost surely, 2^23213133321 is an apocalyptic number.

23213133321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23213133321 is a deficient number, since it is larger than the sum of its proper divisors (14305279479).

23213133321 is a wasteful number, since it uses less digits than its factorization.

23213133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444269.

The product of its digits is 1944, while the sum is 24.

Adding to 23213133321 its reverse (12333131232), we get a palindrome (35546264553).

The spelling of 23213133321 in words is "twenty-three billion, two hundred thirteen million, one hundred thirty-three thousand, three hundred twenty-one".