431534011 has 2 divisors, whose sum is σ = 431534012. Its totient is φ = 431534010.

The previous prime is 431533987. The next prime is 431534021. The reversal of 431534011 is 110435134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431534011 - 2²¹ = 429436859 is a prime.

It is not a weakly prime, because it can be changed into another prime (431534021) 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, 215767005 + 215767006.

It is an arithmetic number, because the mean of its divisors is an integer number (215767006).

Almost surely, 2^431534011 is an apocalyptic number.

431534011 is a deficient number, since it is larger than the sum of its proper divisors (1).

431534011 is an equidigital number, since it uses as much as digits as its factorization.

431534011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 431534011 is about 20773.3967131040. The cubic root of 431534011 is about 755.6807222622.

Adding to 431534011 its reverse (110435134), we get a palindrome (541969145).

The spelling of 431534011 in words is "four hundred thirty-one million, five hundred thirty-four thousand, eleven".