20023113287 has 2 divisors, whose sum is σ = 20023113288. Its totient is φ = 20023113286.

The previous prime is 20023113239. The next prime is 20023113329. The reversal of 20023113287 is 78231132002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20023113287 - 2⁶ = 20023113223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20023119287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011556643 + 10011556644.

It is an arithmetic number, because the mean of its divisors is an integer number (10011556644).

Almost surely, 2^20023113287 is an apocalyptic number.

20023113287 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023113287 is an equidigital number, since it uses as much as digits as its factorization.

20023113287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 20023113287 its reverse (78231132002), we get a palindrome (98254245289).

The spelling of 20023113287 in words is "twenty billion, twenty-three million, one hundred thirteen thousand, two hundred eighty-seven".