20570282243 has 8 divisors (see below), whose sum is σ = 23522318688. Its totient is φ = 17621601984.

The previous prime is 20570282237. The next prime is 20570282269. The reversal of 20570282243 is 34228207502.

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

It is not a de Polignac number, because 20570282243 - 2¹² = 20570278147 is a prime.

It is a super-2 number, since 2×20570282243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20570282203) 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, 825896 + ... + 850437.

It is an arithmetic number, because the mean of its divisors is an integer number (2940289836).

Almost surely, 2^20570282243 is an apocalyptic number.

20570282243 is a deficient number, since it is larger than the sum of its proper divisors (2952036445).

20570282243 is a wasteful number, since it uses less digits than its factorization.

20570282243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678093.

The product of its (nonzero) digits is 53760, while the sum is 35.

Adding to 20570282243 its reverse (34228207502), we get a palindrome (54798489745).

The spelling of 20570282243 in words is "twenty billion, five hundred seventy million, two hundred eighty-two thousand, two hundred forty-three".