20520012263 has 2 divisors, whose sum is σ = 20520012264. Its totient is φ = 20520012262.

The previous prime is 20520012257. The next prime is 20520012269. The reversal of 20520012263 is 36221002502.

It is a balanced prime because it is at equal distance from previous prime (20520012257) and next prime (20520012269).

It is a cyclic number.

It is not a de Polignac number, because 20520012263 - 2⁶ = 20520012199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20520012269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10260006131 + 10260006132.

It is an arithmetic number, because the mean of its divisors is an integer number (10260006132).

Almost surely, 2^20520012263 is an apocalyptic number.

20520012263 is a deficient number, since it is larger than the sum of its proper divisors (1).

20520012263 is an equidigital number, since it uses as much as digits as its factorization.

20520012263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20520012263 its reverse (36221002502), we get a palindrome (56741014765).

The spelling of 20520012263 in words is "twenty billion, five hundred twenty million, twelve thousand, two hundred sixty-three".