1931982434903 has 2 divisors, whose sum is σ = 1931982434904. Its totient is φ = 1931982434902.

The previous prime is 1931982434887. The next prime is 1931982434933. The reversal of 1931982434903 is 3094342891391.

It is a weak prime.

It is an emirp because it is prime and its reverse (3094342891391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1931982434903 - 2⁴ = 1931982434887 is a prime.

It is a super-2 number, since 2×1931982434903² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1931982434933) 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, 965991217451 + 965991217452.

It is an arithmetic number, because the mean of its divisors is an integer number (965991217452).

Almost surely, 2^{1931982434903} is an apocalyptic number.

1931982434903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1931982434903 is an equidigital number, since it uses as much as digits as its factorization.

1931982434903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5038848, while the sum is 56.

The spelling of 1931982434903 in words is "one trillion, nine hundred thirty-one billion, nine hundred eighty-two million, four hundred thirty-four thousand, nine hundred three".