431313311 has 16 divisors (see below), whose sum is σ = 516287520. Its totient is φ = 355105920.

The previous prime is 431313301. The next prime is 431313343. The reversal of 431313311 is 113313134.

It is not a de Polignac number, because 431313311 - 2¹⁴ = 431296927 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 (431313301) 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 15 ways as a sum of consecutive naturals, for example, 20876 + ... + 36033.

It is an arithmetic number, because the mean of its divisors is an integer number (32267970).

Almost surely, 2^431313311 is an apocalyptic number.

431313311 is a deficient number, since it is larger than the sum of its proper divisors (84974209).

431313311 is a wasteful number, since it uses less digits than its factorization.

431313311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56986.

The product of its digits is 324, while the sum is 20.

The square root of 431313311 is about 20768.0839511015. The cubic root of 431313311 is about 755.5518740361.

Adding to 431313311 its reverse (113313134), we get a palindrome (544626445).

The spelling of 431313311 in words is "four hundred thirty-one million, three hundred thirteen thousand, three hundred eleven".