20673354241 has 4 divisors (see below), whose sum is σ = 20674139584. Its totient is φ = 20672568900.

The previous prime is 20673354227. The next prime is 20673354253. The reversal of 20673354241 is 14245337602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20673354241 - 2⁷ = 20673354113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20673354241.

It is not an unprimeable number, because it can be changed into a prime (20673354941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351765 + ... + 406306.

It is an arithmetic number, because the mean of its divisors is an integer number (5168534896).

Almost surely, 2^20673354241 is an apocalyptic number.

It is an amenable number.

20673354241 is a deficient number, since it is larger than the sum of its proper divisors (785343).

20673354241 is an equidigital number, since it uses as much as digits as its factorization.

20673354241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785342.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 20673354241 in words is "twenty billion, six hundred seventy-three million, three hundred fifty-four thousand, two hundred forty-one".