13223503312 has 20 divisors (see below), whose sum is σ = 27127628676. Its totient is φ = 6222824960.

The previous prime is 13223503309. The next prime is 13223503333. The reversal of 13223503312 is 21330532231.

It can be written as a sum of positive squares in 2 ways, for example, as 5187456576 + 8036046736 = 72024^2 + 89644^2 .

It is a super-2 number, since 2×13223503312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24307639 + ... + 24308182.

Almost surely, 2^13223503312 is an apocalyptic number.

It is an amenable number.

13223503312 is an abundant number, since it is smaller than the sum of its proper divisors (13904125364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13223503312 is a wasteful number, since it uses less digits than its factorization.

13223503312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48615846 (or 48615840 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The spelling of 13223503312 in words is "thirteen billion, two hundred twenty-three million, five hundred three thousand, three hundred twelve".