1031112223 has 2 divisors, whose sum is σ = 1031112224.
Its totient is φ = 1031112222.
The previous prime is 1031112211. The next prime is 1031112227. The reversal of 1031112223 is 3222111301.
Adding to 1031112223 its reverse (3222111301), we get a palindrome (4253223524).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1031112223 - 213 = 1031104031 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1031112197 and 1031112206.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1031112227) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515556111 + 515556112.
It is an arithmetic number, because the mean of its divisors is an integer number (515556112).
Almost surely, 21031112223 is an apocalyptic number.
1031112223 is a deficient number, since it is larger than the sum of its proper divisors (1).
1031112223 is an equidigital number, since it uses as much as digits as its factorization.
1031112223 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 16.
The square root of 1031112223 is about 32110.9361900272.
The cubic root of 1031112223 is about 1010.2650100263.
The spelling of 1031112223 in words is "one billion, thirty-one million, one hundred twelve thousand, two hundred twenty-three".