1111320231223 has 2 divisors, whose sum is σ = 1111320231224. Its totient is φ = 1111320231222.

The previous prime is 1111320231193. The next prime is 1111320231247. The reversal of 1111320231223 is 3221320231111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111320231223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111320231194 and 1111320231203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111320211223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555660115611 + 555660115612.

It is an arithmetic number, because the mean of its divisors is an integer number (555660115612).

Almost surely, 2^{1111320231223} is an apocalyptic number.

1111320231223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111320231223 is an equidigital number, since it uses as much as digits as its factorization.

1111320231223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1111320231223 its reverse (3221320231111), we get a palindrome (4332640462334).

The spelling of 1111320231223 in words is "one trillion, one hundred eleven billion, three hundred twenty million, two hundred thirty-one thousand, two hundred twenty-three".