431341403 has 4 divisors (see below), whose sum is σ = 434737920. Its totient is φ = 427944888.

The previous prime is 431341399. The next prime is 431341411. The reversal of 431341403 is 304143134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431341403 - 2² = 431341399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431341433) 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, 1698068 + ... + 1698321.

It is an arithmetic number, because the mean of its divisors is an integer number (108684480).

Almost surely, 2^431341403 is an apocalyptic number.

431341403 is a deficient number, since it is larger than the sum of its proper divisors (3396517).

431341403 is a wasteful number, since it uses less digits than its factorization.

431341403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396516.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 431341403 is about 20768.7602663231. The cubic root of 431341403 is about 755.5682770405.

Adding to 431341403 its reverse (304143134), we get a palindrome (735484537).

The spelling of 431341403 in words is "four hundred thirty-one million, three hundred forty-one thousand, four hundred three".