13223031 has 16 divisors (see below), whose sum is σ = 18867840. Its totient is φ = 8212320.

The previous prime is 13223029. The next prime is 13223039. The reversal of 13223031 is 13032231.

It is not a de Polignac number, because 13223031 - 2¹ = 13223029 is a prime.

It is a super-2 number, since 2×13223031² = 349697097653922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13223031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1576 + ... + 5378.

It is an arithmetic number, because the mean of its divisors is an integer number (1179240).

Almost surely, 2^13223031 is an apocalyptic number.

13223031 is a deficient number, since it is larger than the sum of its proper divisors (5644809).

13223031 is a wasteful number, since it uses less digits than its factorization.

13223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13223031 is about 3636.3485806507. The cubic root of 13223031 is about 236.4705194433.

Adding to 13223031 its reverse (13032231), we get a palindrome (26255262).

The spelling of 13223031 in words is "thirteen million, two hundred twenty-three thousand, thirty-one".