431605657603 has 2 divisors, whose sum is σ = 431605657604. Its totient is φ = 431605657602.

The previous prime is 431605657597. The next prime is 431605657607. The reversal of 431605657603 is 306756506134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431605657603 is a prime.

It is not a weakly prime, because it can be changed into another prime (431605657607) 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, 215802828801 + 215802828802.

It is an arithmetic number, because the mean of its divisors is an integer number (215802828802).

Almost surely, 2^431605657603 is an apocalyptic number.

431605657603 is a deficient number, since it is larger than the sum of its proper divisors (1).

431605657603 is an equidigital number, since it uses as much as digits as its factorization.

431605657603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 46.

The spelling of 431605657603 in words is "four hundred thirty-one billion, six hundred five million, six hundred fifty-seven thousand, six hundred three".