13223226357 has 48 divisors (see below), whose sum is σ = 20966033088. Its totient is φ = 7964490240.

The previous prime is 13223226347. The next prime is 13223226371. The reversal of 13223226357 is 75362232231.

13223226357 is a `hidden beast` number, since 1 + 322 + 322 + 6 + 3 + 5 + 7 = 666.

It is not a de Polignac number, because 13223226357 - 2⁸ = 13223226101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223226347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15988978 + ... + 15989804.

It is an arithmetic number, because the mean of its divisors is an integer number (436792356).

Almost surely, 2^13223226357 is an apocalyptic number.

It is an amenable number.

13223226357 is a deficient number, since it is larger than the sum of its proper divisors (7742806731).

13223226357 is a wasteful number, since it uses less digits than its factorization.

13223226357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1647 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

Adding to 13223226357 its reverse (75362232231), we get a palindrome (88585458588).

The spelling of 13223226357 in words is "thirteen billion, two hundred twenty-three million, two hundred twenty-six thousand, three hundred fifty-seven".