1820018190983 has 2 divisors, whose sum is σ = 1820018190984. Its totient is φ = 1820018190982.

The previous prime is 1820018190973. The next prime is 1820018191093. The reversal of 1820018190983 is 3890918100281.

It is a weak prime.

It is an emirp because it is prime and its reverse (3890918100281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1820018190983 - 2⁴ = 1820018190967 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1820018190973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910009095491 + 910009095492.

It is an arithmetic number, because the mean of its divisors is an integer number (910009095492).

Almost surely, 2^{1820018190983} is an apocalyptic number.

1820018190983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1820018190983 is an equidigital number, since it uses as much as digits as its factorization.

1820018190983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 50.

The spelling of 1820018190983 in words is "one trillion, eight hundred twenty billion, eighteen million, one hundred ninety thousand, nine hundred eighty-three".