202040311843 has 4 divisors (see below), whose sum is σ = 202110297520. Its totient is φ = 201970326168.

The previous prime is 202040311831. The next prime is 202040311849. The reversal of 202040311843 is 348113040202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202040311843 - 2⁹ = 202040311331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202040311849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34988508 + ... + 34994281.

It is an arithmetic number, because the mean of its divisors is an integer number (50527574380).

Almost surely, 2^202040311843 is an apocalyptic number.

202040311843 is a deficient number, since it is larger than the sum of its proper divisors (69985677).

202040311843 is an equidigital number, since it uses as much as digits as its factorization.

202040311843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69985676.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 202040311843 in words is "two hundred two billion, forty million, three hundred eleven thousand, eight hundred forty-three".