20537002223 has 2 divisors, whose sum is σ = 20537002224. Its totient is φ = 20537002222.

The previous prime is 20537002217. The next prime is 20537002231. The reversal of 20537002223 is 32220073502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20537002223 - 2¹⁶ = 20536936687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20537002192 and 20537002201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20537002253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10268501111 + 10268501112.

It is an arithmetic number, because the mean of its divisors is an integer number (10268501112).

Almost surely, 2^20537002223 is an apocalyptic number.

20537002223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20537002223 is an equidigital number, since it uses as much as digits as its factorization.

20537002223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 26.

Adding to 20537002223 its reverse (32220073502), we get a palindrome (52757075725).

The spelling of 20537002223 in words is "twenty billion, five hundred thirty-seven million, two thousand, two hundred twenty-three".