1223023113 has 24 divisors (see below), whose sum is σ = 1903675592. Its totient is φ = 752156928.

The previous prime is 1223023079. The next prime is 1223023117. The reversal of 1223023113 is 3113203221.

It can be written as a sum of positive squares in 4 ways, for example, as 722695689 + 500327424 = 26883^2 + 22368^2 .

It is not a de Polignac number, because 1223023113 - 2¹³ = 1223014921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223023117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315495 + ... + 319347.

Almost surely, 2^1223023113 is an apocalyptic number.

1223023113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1223023113 is a deficient number, since it is larger than the sum of its proper divisors (680652479).

1223023113 is a wasteful number, since it uses less digits than its factorization.

1223023113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6585 (or 6582 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1223023113 is about 34971.7473541143. The cubic root of 1223023113 is about 1069.4115939768.

Adding to 1223023113 its reverse (3113203221), we get a palindrome (4336226334).

The spelling of 1223023113 in words is "one billion, two hundred twenty-three million, twenty-three thousand, one hundred thirteen".