20001230310011 has 4 divisors (see below), whose sum is σ = 20001267976800. Its totient is φ = 20001192643224.

The previous prime is 20001230309993. The next prime is 20001230310049. The reversal of 20001230310011 is 11001303210002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001230310011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001230310091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18025331 + ... + 19102748.

It is an arithmetic number, because the mean of its divisors is an integer number (5000316994200).

Almost surely, 2^{20001230310011} is an apocalyptic number.

20001230310011 is a deficient number, since it is larger than the sum of its proper divisors (37666789).

20001230310011 is an equidigital number, since it uses as much as digits as its factorization.

20001230310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37666788.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20001230310011 its reverse (11001303210002), we get a palindrome (31002533520013).

The spelling of 20001230310011 in words is "twenty trillion, one billion, two hundred thirty million, three hundred ten thousand, eleven".