431332233161 has 2 divisors, whose sum is σ = 431332233162. Its totient is φ = 431332233160.

The previous prime is 431332233131. The next prime is 431332233169. The reversal of 431332233161 is 161332233134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430393729936 + 938503225 = 656044^2 + 30635^2 .

It is a cyclic number.

It is not a de Polignac number, because 431332233161 - 2¹⁰ = 431332232137 is a prime.

It is not a weakly prime, because it can be changed into another prime (431332233169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215666116580 + 215666116581.

It is an arithmetic number, because the mean of its divisors is an integer number (215666116581).

Almost surely, 2^431332233161 is an apocalyptic number.

It is an amenable number.

431332233161 is a deficient number, since it is larger than the sum of its proper divisors (1).

431332233161 is an equidigital number, since it uses as much as digits as its factorization.

431332233161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 32.

Adding to 431332233161 its reverse (161332233134), we get a palindrome (592664466295).

The spelling of 431332233161 in words is "four hundred thirty-one billion, three hundred thirty-two million, two hundred thirty-three thousand, one hundred sixty-one".