1223424013 has 6 divisors (see below), whose sum is σ = 1423166766. Its totient is φ = 1048649112.

The previous prime is 1223424011. The next prime is 1223424049. The reversal of 1223424013 is 3104243221.

It can be written as a sum of positive squares in only one way, i.e., 842276484 + 381147529 = 29022^2 + 19523^2 .

It is not a de Polignac number, because 1223424013 - 2¹ = 1223424011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223424011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12483870 + ... + 12483967.

It is an arithmetic number, because the mean of its divisors is an integer number (237194461).

Almost surely, 2^1223424013 is an apocalyptic number.

It is an amenable number.

1223424013 is a deficient number, since it is larger than the sum of its proper divisors (199742753).

1223424013 is an equidigital number, since it uses as much as digits as its factorization.

1223424013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24967851 (or 24967844 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1223424013 is about 34977.4786541283. The cubic root of 1223424013 is about 1069.5284302184.

Adding to 1223424013 its reverse (3104243221), we get a palindrome (4327667234).

The spelling of 1223424013 in words is "one billion, two hundred twenty-three million, four hundred twenty-four thousand, thirteen".