20210440343 has 8 divisors (see below), whose sum is σ = 20644348608. Its totient is φ = 19776694624.

The previous prime is 20210440309. The next prime is 20210440351. The reversal of 20210440343 is 34304401202.

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 20210440343 - 2³⁰ = 19136698519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210440643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229805 + ... + 305337.

It is an arithmetic number, because the mean of its divisors is an integer number (2580543576).

Almost surely, 2^20210440343 is an apocalyptic number.

20210440343 is a deficient number, since it is larger than the sum of its proper divisors (433908265).

20210440343 is an equidigital number, since it uses as much as digits as its factorization.

20210440343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81273.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20210440343 its reverse (34304401202), we get a palindrome (54514841545).

The spelling of 20210440343 in words is "twenty billion, two hundred ten million, four hundred forty thousand, three hundred forty-three".