431342043157 has 2 divisors, whose sum is σ = 431342043158. Its totient is φ = 431342043156.

The previous prime is 431342043151. The next prime is 431342043247. The reversal of 431342043157 is 751340243134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386617829796 + 44724213361 = 621786^2 + 211481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431342043157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431342043151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215671021578 + 215671021579.

It is an arithmetic number, because the mean of its divisors is an integer number (215671021579).

Almost surely, 2^431342043157 is an apocalyptic number.

It is an amenable number.

431342043157 is a deficient number, since it is larger than the sum of its proper divisors (1).

431342043157 is an equidigital number, since it uses as much as digits as its factorization.

431342043157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 431342043157 in words is "four hundred thirty-one billion, three hundred forty-two million, forty-three thousand, one hundred fifty-seven".