1223242113 has 32 divisors (see below), whose sum is σ = 1729024000. Its totient is φ = 768035520.

The previous prime is 1223242099. The next prime is 1223242121. The reversal of 1223242113 is 3112423221.

It is not a de Polignac number, because 1223242113 - 2⁵ = 1223242081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223242113.

It is not an unprimeable number, because it can be changed into a prime (1223240113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1995195 + ... + 1995807.

It is an arithmetic number, because the mean of its divisors is an integer number (54032000).

Almost surely, 2^1223242113 is an apocalyptic number.

It is an amenable number.

1223242113 is a deficient number, since it is larger than the sum of its proper divisors (505781887).

1223242113 is a wasteful number, since it uses less digits than its factorization.

1223242113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189.

The product of its digits is 576, while the sum is 21.

The square root of 1223242113 is about 34974.8783128691. The cubic root of 1223242113 is about 1069.4754213782.

Adding to 1223242113 its reverse (3112423221), we get a palindrome (4335665334).

It can be divided in two parts, 12232 and 42113, that added together give a palindrome (54345).

The spelling of 1223242113 in words is "one billion, two hundred twenty-three million, two hundred forty-two thousand, one hundred thirteen".