1020020211943 has 2 divisors, whose sum is σ = 1020020211944. Its totient is φ = 1020020211942.

The previous prime is 1020020211811. The next prime is 1020020211961. The reversal of 1020020211943 is 3491120200201.

It is a strong prime.

It is an emirp because it is prime and its reverse (3491120200201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020020211943 - 2¹³ = 1020020203751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020020211443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510010105971 + 510010105972.

It is an arithmetic number, because the mean of its divisors is an integer number (510010105972).

Almost surely, 2^{1020020211943} is an apocalyptic number.

1020020211943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020020211943 is an equidigital number, since it uses as much as digits as its factorization.

1020020211943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 1020020211943 in words is "one trillion, twenty billion, twenty million, two hundred eleven thousand, nine hundred forty-three".