431203401 has 6 divisors (see below), whose sum is σ = 622849370. Its totient is φ = 287468928.

The previous prime is 431203393. The next prime is 431203403. The reversal of 431203401 is 104302134.

It can be written as a sum of positive squares in only one way, i.e., 418243401 + 12960000 = 20451^2 + 3600^2 .

It is not a de Polignac number, because 431203401 - 2³ = 431203393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431203403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23955736 + ... + 23955753.

Almost surely, 2^431203401 is an apocalyptic number.

It is an amenable number.

431203401 is a deficient number, since it is larger than the sum of its proper divisors (191645969).

431203401 is a wasteful number, since it uses less digits than its factorization.

431203401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47911495 (or 47911492 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 431203401 is about 20765.4376549111. The cubic root of 431203401 is about 755.4876904066.

Adding to 431203401 its reverse (104302134), we get a palindrome (535505535).

The spelling of 431203401 in words is "four hundred thirty-one million, two hundred three thousand, four hundred one".