13231413 has 12 divisors (see below), whose sum is σ = 20582380. Its totient is φ = 8142336.

The previous prime is 13231411. The next prime is 13231481. The reversal of 13231413 is 31413231.

It can be written as a sum of positive squares in 2 ways, for example, as 3849444 + 9381969 = 1962^2 + 3063^2 .

It is not a de Polignac number, because 13231413 - 2¹ = 13231411 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231411) 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 11 ways as a sum of consecutive naturals, for example, 56428 + ... + 56661.

Almost surely, 2^13231413 is an apocalyptic number.

13231413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13231413 is a deficient number, since it is larger than the sum of its proper divisors (7350967).

13231413 is a wasteful number, since it uses less digits than its factorization.

13231413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113108 (or 113105 counting only the distinct ones).

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

The square root of 13231413 is about 3637.5009278349. The cubic root of 13231413 is about 236.5204746371.

Adding to 13231413 its reverse (31413231), we get a palindrome (44644644).

The spelling of 13231413 in words is "thirteen million, two hundred thirty-one thousand, four hundred thirteen".