111228823 has 2 divisors, whose sum is σ = 111228824. Its totient is φ = 111228822.

The previous prime is 111228809. The next prime is 111228827. The reversal of 111228823 is 328822111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111228823 - 2⁵ = 111228791 is a prime.

It is a super-3 number, since 3×111228823³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111228791 and 111228800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111228827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55614411 + 55614412.

It is an arithmetic number, because the mean of its divisors is an integer number (55614412).

Almost surely, 2^111228823 is an apocalyptic number.

111228823 is a deficient number, since it is larger than the sum of its proper divisors (1).

111228823 is an equidigital number, since it uses as much as digits as its factorization.

111228823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 28.

The square root of 111228823 is about 10546.5076210090. The cubic root of 111228823 is about 480.9195667738.

The spelling of 111228823 in words is "one hundred eleven million, two hundred twenty-eight thousand, eight hundred twenty-three".