2021303023043 has 4 divisors (see below), whose sum is σ = 2023424013528. Its totient is φ = 2019182032560.

The previous prime is 2021303023037. The next prime is 2021303023057. The reversal of 2021303023043 is 3403203031202.

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 2021303023043 - 2²⁰ = 2021301974467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021303025043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060493813 + ... + 1060495718.

It is an arithmetic number, because the mean of its divisors is an integer number (505856003382).

Almost surely, 2^{2021303023043} is an apocalyptic number.

2021303023043 is a deficient number, since it is larger than the sum of its proper divisors (2120990485).

2021303023043 is an equidigital number, since it uses as much as digits as its factorization.

2021303023043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120990484.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 2021303023043 its reverse (3403203031202), we get a palindrome (5424506054245).

The spelling of 2021303023043 in words is "two trillion, twenty-one billion, three hundred three million, twenty-three thousand, forty-three".