20200091843 has 2 divisors, whose sum is σ = 20200091844. Its totient is φ = 20200091842.

The previous prime is 20200091833. The next prime is 20200091869. The reversal of 20200091843 is 34819000202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20200091843 - 2¹⁴ = 20200075459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20200091833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100045921 + 10100045922.

It is an arithmetic number, because the mean of its divisors is an integer number (10100045922).

Almost surely, 2^20200091843 is an apocalyptic number.

20200091843 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200091843 is an equidigital number, since it uses as much as digits as its factorization.

20200091843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 20200091843 in words is "twenty billion, two hundred million, ninety-one thousand, eight hundred forty-three".