13223203131 has 8 divisors (see below), whose sum is σ = 17670738240. Its totient is φ = 8795568392.

The previous prime is 13223203127. The next prime is 13223203163. The reversal of 13223203131 is 13130232231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13223203131 - 2² = 13223203127 is a prime.

It is a super-2 number, since 2×13223203131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13223203098 and 13223203107.

It is not an unprimeable number, because it can be changed into a prime (13223203111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4973541 + ... + 4976198.

It is an arithmetic number, because the mean of its divisors is an integer number (2208842280).

Almost surely, 2^13223203131 is an apocalyptic number.

13223203131 is a deficient number, since it is larger than the sum of its proper divisors (4447535109).

13223203131 is an equidigital number, since it uses as much as digits as its factorization.

13223203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9950185.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13223203131 its reverse (13130232231), we get a palindrome (26353435362).

The spelling of 13223203131 in words is "thirteen billion, two hundred twenty-three million, two hundred three thousand, one hundred thirty-one".