431201311 has 4 divisors (see below), whose sum is σ = 456566112. Its totient is φ = 405836512.

The previous prime is 431201279. The next prime is 431201339. The reversal of 431201311 is 113102134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113102134 = 2 ⋅56551067.

It is not a de Polignac number, because 431201311 - 2⁵ = 431201279 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 (431201011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12682375 + ... + 12682408.

It is an arithmetic number, because the mean of its divisors is an integer number (114141528).

Almost surely, 2^431201311 is an apocalyptic number.

431201311 is a deficient number, since it is larger than the sum of its proper divisors (25364801).

431201311 is a wasteful number, since it uses less digits than its factorization.

431201311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25364800.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 431201311 is about 20765.3873308446. The cubic root of 431201311 is about 755.4864698134.

Adding to 431201311 its reverse (113102134), we get a palindrome (544303445).

The spelling of 431201311 in words is "four hundred thirty-one million, two hundred one thousand, three hundred eleven".