201213213122323 has 4 divisors (see below), whose sum is σ = 202447650012808. Its totient is φ = 199978776231840.

The previous prime is 201213213122189. The next prime is 201213213122359. The reversal of 201213213122323 is 323221312312102.

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 201213213122323 - 2²¹ = 201213211025171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201213213122291 and 201213213122300.

It is not an unprimeable number, because it can be changed into a prime (201213213122723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617218444998 + ... + 617218445323.

It is an arithmetic number, because the mean of its divisors is an integer number (50611912503202).

Almost surely, 2^{201213213122323} is an apocalyptic number.

201213213122323 is a deficient number, since it is larger than the sum of its proper divisors (1234436890485).

201213213122323 is a wasteful number, since it uses less digits than its factorization.

201213213122323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234436890484.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 201213213122323 its reverse (323221312312102), we get a palindrome (524434525434425).

The spelling of 201213213122323 in words is "two hundred one trillion, two hundred thirteen billion, two hundred thirteen million, one hundred twenty-two thousand, three hundred twenty-three".