20023211231087 has 2 divisors, whose sum is σ = 20023211231088. Its totient is φ = 20023211231086.

The previous prime is 20023211231077. The next prime is 20023211231113. The reversal of 20023211231087 is 78013211232002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20023211231087 - 2⁸ = 20023211230831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20023211231077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011605615543 + 10011605615544.

It is an arithmetic number, because the mean of its divisors is an integer number (10011605615544).

Almost surely, 2^{20023211231087} is an apocalyptic number.

20023211231087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023211231087 is an equidigital number, since it uses as much as digits as its factorization.

20023211231087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

Adding to 20023211231087 its reverse (78013211232002), we get a palindrome (98036422463089).

The spelling of 20023211231087 in words is "twenty trillion, twenty-three billion, two hundred eleven million, two hundred thirty-one thousand, eighty-seven".