2021103321143 has 8 divisors (see below), whose sum is σ = 2113307939328. Its totient is φ = 1929259583064.

The previous prime is 2021103321103. The next prime is 2021103321151. The reversal of 2021103321143 is 3411233011202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021103321143 - 2⁶ = 2021103321079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021103321103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90208571 + ... + 90230972.

It is an arithmetic number, because the mean of its divisors is an integer number (264163492416).

Almost surely, 2^{2021103321143} is an apocalyptic number.

2021103321143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2021103321143 is a deficient number, since it is larger than the sum of its proper divisors (92204618185).

2021103321143 is a wasteful number, since it uses less digits than its factorization.

2021103321143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180440053.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2021103321143 its reverse (3411233011202), we get a palindrome (5432336332345).

It can be divided in two parts, 202110 and 3321143, that added together give a palindrome (3523253).

The spelling of 2021103321143 in words is "two trillion, twenty-one billion, one hundred three million, three hundred twenty-one thousand, one hundred forty-three".