431131319 has 2 divisors, whose sum is σ = 431131320. Its totient is φ = 431131318.

The previous prime is 431131279. The next prime is 431131333. The reversal of 431131319 is 913131134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431131319 - 2¹² = 431127223 is a prime.

It is a super-2 number, since 2×431131319² = 371748428445359522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431131369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215565659 + 215565660.

It is an arithmetic number, because the mean of its divisors is an integer number (215565660).

Almost surely, 2^431131319 is an apocalyptic number.

431131319 is a deficient number, since it is larger than the sum of its proper divisors (1).

431131319 is an equidigital number, since it uses as much as digits as its factorization.

431131319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 26.

The square root of 431131319 is about 20763.7019579843. The cubic root of 431131319 is about 755.4455910954.

The spelling of 431131319 in words is "four hundred thirty-one million, one hundred thirty-one thousand, three hundred nineteen".