20570722303 has 4 divisors (see below), whose sum is σ = 20631763360. Its totient is φ = 20509681248.

The previous prime is 20570722261. The next prime is 20570722351. The reversal of 20570722303 is 30322707502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20570722303 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 (20570722373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30520023 + ... + 30520696.

It is an arithmetic number, because the mean of its divisors is an integer number (5157940840).

Almost surely, 2^20570722303 is an apocalyptic number.

20570722303 is a deficient number, since it is larger than the sum of its proper divisors (61041057).

20570722303 is an equidigital number, since it uses as much as digits as its factorization.

20570722303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61041056.

The product of its (nonzero) digits is 17640, while the sum is 31.

The spelling of 20570722303 in words is "twenty billion, five hundred seventy million, seven hundred twenty-two thousand, three hundred three".