13431703 has 4 divisors (see below), whose sum is σ = 13794760. Its totient is φ = 13068648.

The previous prime is 13431679. The next prime is 13431721. The reversal of 13431703 is 30713431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30713431 = 7 ⋅4387633.

It is a cyclic number.

It is not a de Polignac number, because 13431703 - 2⁹ = 13431191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181473 + ... + 181546.

It is an arithmetic number, because the mean of its divisors is an integer number (3448690).

Almost surely, 2^13431703 is an apocalyptic number.

13431703 is a deficient number, since it is larger than the sum of its proper divisors (363057).

13431703 is an equidigital number, since it uses as much as digits as its factorization.

13431703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363056.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 13431703 is about 3664.9287851198. The cubic root of 13431703 is about 237.7079427214.

The spelling of 13431703 in words is "thirteen million, four hundred thirty-one thousand, seven hundred three".