1223113 has 4 divisors (see below), whose sum is σ = 1226880. Its totient is φ = 1219348.

The previous prime is 1223093. The next prime is 1223119. The reversal of 1223113 is 3113221.

It is the 452-nd star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1223113 - 2⁹ = 1222601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223093 and 1223102.

It is not an unprimeable number, because it can be changed into a prime (1223119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345 + ... + 2062.

It is an arithmetic number, because the mean of its divisors is an integer number (306720).

2^1223113 is an apocalyptic number.

It is an amenable number.

1223113 is a deficient number, since it is larger than the sum of its proper divisors (3767).

1223113 is an equidigital number, since it uses as much as digits as its factorization.

1223113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766.

The product of its digits is 36, while the sum is 13.

The square root of 1223113 is about 1105.9443928155. The cubic root of 1223113 is about 106.9437792404.

Adding to 1223113 its reverse (3113221), we get a palindrome (4336334).

The spelling of 1223113 in words is "one million, two hundred twenty-three thousand, one hundred thirteen".