431347743121 has 2 divisors, whose sum is σ = 431347743122. Its totient is φ = 431347743120.

The previous prime is 431347743083. The next prime is 431347743187. The reversal of 431347743121 is 121347743134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378981828225 + 52365914896 = 615615^2 + 228836^2 .

It is a cyclic number.

It is not a de Polignac number, because 431347743121 - 2⁷ = 431347742993 is a prime.

It is not a weakly prime, because it can be changed into another prime (431347743521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215673871560 + 215673871561.

It is an arithmetic number, because the mean of its divisors is an integer number (215673871561).

Almost surely, 2^431347743121 is an apocalyptic number.

It is an amenable number.

431347743121 is a deficient number, since it is larger than the sum of its proper divisors (1).

431347743121 is an equidigital number, since it uses as much as digits as its factorization.

431347743121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 40.

The spelling of 431347743121 in words is "four hundred thirty-one billion, three hundred forty-seven million, seven hundred forty-three thousand, one hundred twenty-one".