20841430973 has 8 divisors (see below), whose sum is σ = 22766881440. Its totient is φ = 18921109680.

The previous prime is 20841430949. The next prime is 20841430997. The reversal of 20841430973 is 37903414802.

It is an interprime number because it is at equal distance from previous prime (20841430949) and next prime (20841430997).

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

It is not a de Polignac number, because 20841430973 - 2¹⁰ = 20841429949 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 20841430973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20841430943) 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, 1273790 + ... + 1290047.

It is an arithmetic number, because the mean of its divisors is an integer number (2845860180).

Almost surely, 2^20841430973 is an apocalyptic number.

It is an amenable number.

20841430973 is a deficient number, since it is larger than the sum of its proper divisors (1925450467).

20841430973 is a wasteful number, since it uses less digits than its factorization.

20841430973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564587.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 20841430973 in words is "twenty billion, eight hundred forty-one million, four hundred thirty thousand, nine hundred seventy-three".