431243400241 has 2 divisors, whose sum is σ = 431243400242. Its totient is φ = 431243400240.

The previous prime is 431243400227. The next prime is 431243400251. The reversal of 431243400241 is 142004342134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392465913841 + 38777486400 = 626471^2 + 196920^2 .

It is a cyclic number.

It is not a de Polignac number, because 431243400241 - 2⁵ = 431243400209 is a prime.

It is not a weakly prime, because it can be changed into another prime (431243400251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215621700120 + 215621700121.

It is an arithmetic number, because the mean of its divisors is an integer number (215621700121).

Almost surely, 2^431243400241 is an apocalyptic number.

It is an amenable number.

431243400241 is a deficient number, since it is larger than the sum of its proper divisors (1).

431243400241 is an equidigital number, since it uses as much as digits as its factorization.

431243400241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 431243400241 its reverse (142004342134), we get a palindrome (573247742375).

The spelling of 431243400241 in words is "four hundred thirty-one billion, two hundred forty-three million, four hundred thousand, two hundred forty-one".