13202321031 has 8 divisors (see below), whose sum is σ = 19558994160. Its totient is φ = 8801547336.

The previous prime is 13202320991. The next prime is 13202321039. The reversal of 13202321031 is 13012320231.

It is not a de Polignac number, because 13202321031 - 2⁹ = 13202320519 is a prime.

It is a super-2 number, since 2×13202321031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13202320995 and 13202321013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13202321039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244487400 + ... + 244487453.

It is an arithmetic number, because the mean of its divisors is an integer number (2444874270).

Almost surely, 2^13202321031 is an apocalyptic number.

13202321031 is a deficient number, since it is larger than the sum of its proper divisors (6356673129).

13202321031 is an equidigital number, since it uses as much as digits as its factorization.

13202321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488974862 (or 488974856 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13202321031 its reverse (13012320231), we get a palindrome (26214641262).

The spelling of 13202321031 in words is "thirteen billion, two hundred two million, three hundred twenty-one thousand, thirty-one".