20011230331159 has 2 divisors, whose sum is σ = 20011230331160. Its totient is φ = 20011230331158.

The previous prime is 20011230331121. The next prime is 20011230331193. The reversal of 20011230331159 is 95113303211002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20011230331159 - 2¹⁹ = 20011229806871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20011230331159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011230331199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005615165579 + 10005615165580.

It is an arithmetic number, because the mean of its divisors is an integer number (10005615165580).

Almost surely, 2^{20011230331159} is an apocalyptic number.

20011230331159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011230331159 is an equidigital number, since it uses as much as digits as its factorization.

20011230331159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 20011230331159 in words is "twenty trillion, eleven billion, two hundred thirty million, three hundred thirty-one thousand, one hundred fifty-nine".