20001331111030 has 16 divisors (see below), whose sum is σ = 36002472059664. Its totient is φ = 8000515542240.

The previous prime is 20001331110991. The next prime is 20001331111033. The reversal of 20001331111030 is 3011113310002.

It is a junction number, because it is equal to n+sod(n) for n = 20001331110995 and 20001331111013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001331111033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3590440 + ... + 7272820.

It is an arithmetic number, because the mean of its divisors is an integer number (2250154503729).

Almost surely, 2^{20001331111030} is an apocalyptic number.

20001331111030 is a deficient number, since it is larger than the sum of its proper divisors (16001140948634).

20001331111030 is a wasteful number, since it uses less digits than its factorization.

20001331111030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225551.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 20001331111030 its reverse (3011113310002), we get a palindrome (23012444421032).

The spelling of 20001331111030 in words is "twenty trillion, one billion, three hundred thirty-one million, one hundred eleven thousand, thirty".