13232431 has 8 divisors (see below), whose sum is σ = 13480560. Its totient is φ = 12986688.

The previous prime is 13232399. The next prime is 13232437. The reversal of 13232431 is 13423231.

13232431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13232431 - 2⁵ = 13232399 is a prime.

It is a super-2 number, since 2×13232431² = 350194460339522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13232399 and 13232408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232437) 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, 13500 + ... + 14446.

It is an arithmetic number, because the mean of its divisors is an integer number (1685070).

Almost surely, 2^13232431 is an apocalyptic number.

13232431 is a deficient number, since it is larger than the sum of its proper divisors (248129).

13232431 is an equidigital number, since it uses as much as digits as its factorization.

13232431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193.

The product of its digits is 432, while the sum is 19.

The square root of 13232431 is about 3637.6408563793. The cubic root of 13232431 is about 236.5265402948.

Adding to 13232431 its reverse (13423231), we get a palindrome (26655662).

It can be divided in two parts, 132324 and 31, that added together give a triangular number (132355 = T₅₁₄).

The spelling of 13232431 in words is "thirteen million, two hundred thirty-two thousand, four hundred thirty-one".