1223423013 has 8 divisors (see below), whose sum is σ = 1631407648. Its totient is φ = 815526864.

The previous prime is 1223423011. The next prime is 1223423021. The reversal of 1223423013 is 3103243221.

1223423013 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223423013 - 2¹ = 1223423011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223423011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23706 + ... + 54852.

It is an arithmetic number, because the mean of its divisors is an integer number (203925956).

Almost surely, 2^1223423013 is an apocalyptic number.

It is an amenable number.

1223423013 is a deficient number, since it is larger than the sum of its proper divisors (407984635).

1223423013 is a wasteful number, since it uses less digits than its factorization.

1223423013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44243.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1223423013 is about 34977.4643592128. The cubic root of 1223423013 is about 1069.5281388153.

Adding to 1223423013 its reverse (3103243221), we get a palindrome (4326666234).

The spelling of 1223423013 in words is "one billion, two hundred twenty-three million, four hundred twenty-three thousand, thirteen".