13221030031 has 6 divisors (see below), whose sum is σ = 14532206696. Its totient is φ = 12019118100.

The previous prime is 13221030029. The next prime is 13221030083. The reversal of 13221030031 is 13003012231.

It is not a de Polignac number, because 13221030031 - 2¹ = 13221030029 is a prime.

It is a super-2 number, since 2×13221030031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221029987 and 13221030014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221030001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54632235 + ... + 54632476.

Almost surely, 2^13221030031 is an apocalyptic number.

13221030031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13221030031 is a deficient number, since it is larger than the sum of its proper divisors (1311176665).

13221030031 is a wasteful number, since it uses less digits than its factorization.

13221030031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109264733 (or 109264722 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13221030031 its reverse (13003012231), we get a palindrome (26224042262).

The spelling of 13221030031 in words is "thirteen billion, two hundred twenty-one million, thirty thousand, thirty-one".