111211230233 has 2 divisors, whose sum is σ = 111211230234. Its totient is φ = 111211230232.

The previous prime is 111211230223. The next prime is 111211230239. The reversal of 111211230233 is 332032112111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102238783504 + 8972446729 = 319748^2 + 94723^2 .

It is a cyclic number.

It is not a de Polignac number, because 111211230233 - 2⁸ = 111211229977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (111211230239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605615116 + 55605615117.

It is an arithmetic number, because the mean of its divisors is an integer number (55605615117).

Almost surely, 2^111211230233 is an apocalyptic number.

It is an amenable number.

111211230233 is a deficient number, since it is larger than the sum of its proper divisors (1).

111211230233 is an equidigital number, since it uses as much as digits as its factorization.

111211230233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111211230233 its reverse (332032112111), we get a palindrome (443243342344).

The spelling of 111211230233 in words is "one hundred eleven billion, two hundred eleven million, two hundred thirty thousand, two hundred thirty-three".