13223312002 has 4 divisors (see below), whose sum is σ = 19834968006. Its totient is φ = 6611656000.

The previous prime is 13223311993. The next prime is 13223312021. The reversal of 13223312002 is 20021332231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20021332231 = 283 ⋅70746757.

It can be written as a sum of positive squares in only one way, i.e., 10559823121 + 2663488881 = 102761^2 + 51609^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305827999 + ... + 3305828002.

Almost surely, 2^13223312002 is an apocalyptic number.

13223312002 is a deficient number, since it is larger than the sum of its proper divisors (6611656004).

13223312002 is an equidigital number, since it uses as much as digits as its factorization.

13223312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6611656003.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13223312002 its reverse (20021332231), we get a palindrome (33244644233).

The spelling of 13223312002 in words is "thirteen billion, two hundred twenty-three million, three hundred twelve thousand, two".