223012031111 has 2 divisors, whose sum is σ = 223012031112. Its totient is φ = 223012031110.

The previous prime is 223012031093. The next prime is 223012031113. The reversal of 223012031111 is 111130210322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223012031111 is a prime.

Together with 223012031113, 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 223012031111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223012031113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111506015555 + 111506015556.

It is an arithmetic number, because the mean of its divisors is an integer number (111506015556).

Almost surely, 2^223012031111 is an apocalyptic number.

223012031111 is a deficient number, since it is larger than the sum of its proper divisors (1).

223012031111 is an equidigital number, since it uses as much as digits as its factorization.

223012031111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 223012031111 its reverse (111130210322), we get a palindrome (334142241433).

The spelling of 223012031111 in words is "two hundred twenty-three billion, twelve million, thirty-one thousand, one hundred eleven".