2021310220343 has 8 divisors (see below), whose sum is σ = 2050527397536. Its totient is φ = 1992113821600.

The previous prime is 2021310220337. The next prime is 2021310220367. The reversal of 2021310220343 is 3430220131202.

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 2021310220343 - 2⁴ = 2021310220327 is a prime.

It is a super-2 number, since 2×2021310220343² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021310220843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4998596 + ... + 5387817.

It is an arithmetic number, because the mean of its divisors is an integer number (256315924692).

Almost surely, 2^{2021310220343} is an apocalyptic number.

2021310220343 is a deficient number, since it is larger than the sum of its proper divisors (29217177193).

2021310220343 is a wasteful number, since it uses less digits than its factorization.

2021310220343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10389225.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2021310220343 its reverse (3430220131202), we get a palindrome (5451530351545).

The spelling of 2021310220343 in words is "two trillion, twenty-one billion, three hundred ten million, two hundred twenty thousand, three hundred forty-three".