431311564841 has 2 divisors, whose sum is σ = 431311564842. Its totient is φ = 431311564840.

The previous prime is 431311564781. The next prime is 431311564847. The reversal of 431311564841 is 148465113134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321239568400 + 110071996441 = 566780^2 + 331771^2 .

It is a cyclic number.

It is not a de Polignac number, because 431311564841 - 2¹⁰ = 431311563817 is a prime.

It is not a weakly prime, because it can be changed into another prime (431311564847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215655782420 + 215655782421.

It is an arithmetic number, because the mean of its divisors is an integer number (215655782421).

Almost surely, 2^431311564841 is an apocalyptic number.

It is an amenable number.

431311564841 is a deficient number, since it is larger than the sum of its proper divisors (1).

431311564841 is an equidigital number, since it uses as much as digits as its factorization.

431311564841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 41.

Adding to 431311564841 its reverse (148465113134), we get a palindrome (579776677975).

The spelling of 431311564841 in words is "four hundred thirty-one billion, three hundred eleven million, five hundred sixty-four thousand, eight hundred forty-one".