13223124242 has 4 divisors (see below), whose sum is σ = 19834686366. Its totient is φ = 6611562120.

The previous prime is 13223124227. The next prime is 13223124251. The reversal of 13223124242 is 24242132231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12784598761 + 438525481 = 113069^2 + 20941^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305781059 + ... + 3305781062.

Almost surely, 2^13223124242 is an apocalyptic number.

13223124242 is a deficient number, since it is larger than the sum of its proper divisors (6611562124).

13223124242 is an equidigital number, since it uses as much as digits as its factorization.

13223124242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6611562123.

The product of its digits is 4608, while the sum is 26.

Adding to 13223124242 its reverse (24242132231), we get a palindrome (37465256473).

The spelling of 13223124242 in words is "thirteen billion, two hundred twenty-three million, one hundred twenty-four thousand, two hundred forty-two".