20942535343 has 8 divisors (see below), whose sum is σ = 21022986240. Its totient is φ = 20862212280.

The previous prime is 20942535307. The next prime is 20942535389. The reversal of 20942535343 is 34353524902.

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 20942535343 - 2⁹ = 20942534831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20942535296 and 20942535305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20942535043) 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, 303018 + ... + 365656.

It is an arithmetic number, because the mean of its divisors is an integer number (2627873280).

Almost surely, 2^20942535343 is an apocalyptic number.

20942535343 is a deficient number, since it is larger than the sum of its proper divisors (80450897).

20942535343 is an equidigital number, since it uses as much as digits as its factorization.

20942535343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63917.

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 20942535343 in words is "twenty billion, nine hundred forty-two million, five hundred thirty-five thousand, three hundred forty-three".