20002023312091 has 2 divisors, whose sum is σ = 20002023312092. Its totient is φ = 20002023312090.

The previous prime is 20002023312071. The next prime is 20002023312101. The reversal of 20002023312091 is 19021332020002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20002023312091 - 2⁴¹ = 17803000056539 is a prime.

It is not a weakly prime, because it can be changed into another prime (20002023312071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001011656045 + 10001011656046.

It is an arithmetic number, because the mean of its divisors is an integer number (10001011656046).

Almost surely, 2^{20002023312091} is an apocalyptic number.

20002023312091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002023312091 is an equidigital number, since it uses as much as digits as its factorization.

20002023312091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20002023312091 its reverse (19021332020002), we get a palindrome (39023355332093).

The spelling of 20002023312091 in words is "twenty trillion, two billion, twenty-three million, three hundred twelve thousand, ninety-one".