20001011232089 has 2 divisors, whose sum is σ = 20001011232090. Its totient is φ = 20001011232088.

The previous prime is 20001011232017. The next prime is 20001011232401. The reversal of 20001011232089 is 98023211010002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19999606856464 + 1404375625 = 4472092^2 + 37475^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001011232089 - 2⁴⁰ = 18901499604313 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001011234089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000505616044 + 10000505616045.

It is an arithmetic number, because the mean of its divisors is an integer number (10000505616045).

Almost surely, 2^{20001011232089} is an apocalyptic number.

It is an amenable number.

20001011232089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001011232089 is an equidigital number, since it uses as much as digits as its factorization.

20001011232089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 20001011232089 in words is "twenty trillion, one billion, eleven million, two hundred thirty-two thousand, eighty-nine".