213321000323 has 4 divisors (see below), whose sum is σ = 222595826448. Its totient is φ = 204046174200.

The previous prime is 213321000287. The next prime is 213321000331. The reversal of 213321000323 is 323000123312.

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 213321000323 - 2¹⁸ = 213320738179 is a prime.

It is a super-2 number, since 2×213321000323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213321000295 and 213321000304.

It is not an unprimeable number, because it can be changed into a prime (213321000223) 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, 4637413028 + ... + 4637413073.

It is an arithmetic number, because the mean of its divisors is an integer number (55648956612).

Almost surely, 2^213321000323 is an apocalyptic number.

213321000323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

213321000323 is a deficient number, since it is larger than the sum of its proper divisors (9274826125).

213321000323 is an equidigital number, since it uses as much as digits as its factorization.

213321000323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9274826124.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 213321000323 its reverse (323000123312), we get a palindrome (536321123635).

The spelling of 213321000323 in words is "two hundred thirteen billion, three hundred twenty-one million, three hundred twenty-three", and thus it is an aban number.