431318353 has 2 divisors, whose sum is σ = 431318354. Its totient is φ = 431318352.

The previous prime is 431318351. The next prime is 431318369. The reversal of 431318353 is 353813134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402082704 + 29235649 = 20052^2 + 5407^2 .

It is a cyclic number.

It is not a de Polignac number, because 431318353 - 2¹ = 431318351 is a prime.

Together with 431318351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (431318351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215659176 + 215659177.

It is an arithmetic number, because the mean of its divisors is an integer number (215659177).

Almost surely, 2^431318353 is an apocalyptic number.

It is an amenable number.

431318353 is a deficient number, since it is larger than the sum of its proper divisors (1).

431318353 is an equidigital number, since it uses as much as digits as its factorization.

431318353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 431318353 is about 20768.2053389309. The cubic root of 431318353 is about 755.5548181277.

The spelling of 431318353 in words is "four hundred thirty-one million, three hundred eighteen thousand, three hundred fifty-three".