13223555532231 has 48 divisors (see below), whose sum is σ = 20155707801600. Its totient is φ = 7698968671680.

The previous prime is 13223555532217. The next prime is 13223555532251.

13223555532231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13223555532231 - 2⁵ = 13223555532199 is a prime.

It is a super-2 number, since 2×13223555532231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223555532211) 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, 5170311 + ... + 7292408.

It is an arithmetic number, because the mean of its divisors is an integer number (419910579200).

Almost surely, 2^{13223555532231} is an apocalyptic number.

13223555532231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13223555532231 is a deficient number, since it is larger than the sum of its proper divisors (6932152269369).

13223555532231 is a wasteful number, since it uses less digits than its factorization.

13223555532231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12462860 (or 12462849 counting only the distinct ones).

The product of its digits is 810000, while the sum is 42.

It can be divided in two parts, 1322355 and 5532231, that added together give a palindrome (6854586).

The spelling of 13223555532231 in words is "thirteen trillion, two hundred twenty-three billion, five hundred fifty-five million, five hundred thirty-two thousand, two hundred thirty-one".