223211334885431 has 2 divisors, whose sum is σ = 223211334885432. Its totient is φ = 223211334885430.

The previous prime is 223211334885401. The next prime is 223211334885433. The reversal of 223211334885431 is 134588433112322.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223211334885431 - 2⁶ = 223211334885367 is a prime.

It is a super-3 number, since 3×223211334885431³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

Together with 223211334885433, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223211334885431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223211334885433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111605667442715 + 111605667442716.

It is an arithmetic number, because the mean of its divisors is an integer number (111605667442716).

Almost surely, 2^{223211334885431} is an apocalyptic number.

223211334885431 is a deficient number, since it is larger than the sum of its proper divisors (1).

223211334885431 is an equidigital number, since it uses as much as digits as its factorization.

223211334885431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 50.

Adding to 223211334885431 its reverse (134588433112322), we get a palindrome (357799767997753).

The spelling of 223211334885431 in words is "two hundred twenty-three trillion, two hundred eleven billion, three hundred thirty-four million, eight hundred eighty-five thousand, four hundred thirty-one".