20211030020111 has 16 divisors (see below), whose sum is σ = 24933718771200. Its totient is φ = 15999136204128.

The previous prime is 20211030020099. The next prime is 20211030020117. The reversal of 20211030020111 is 11102003011202.

It is not a de Polignac number, because 20211030020111 - 2¹⁸ = 20211029757967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211030020117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2164380641 + ... + 2164389978.

It is an arithmetic number, because the mean of its divisors is an integer number (1558357423200).

Almost surely, 2^{20211030020111} is an apocalyptic number.

20211030020111 is a deficient number, since it is larger than the sum of its proper divisors (4722688751089).

20211030020111 is a wasteful number, since it uses less digits than its factorization.

20211030020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328770678.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20211030020111 its reverse (11102003011202), we get a palindrome (31313033031313).

The spelling of 20211030020111 in words is "twenty trillion, two hundred eleven billion, thirty million, twenty thousand, one hundred eleven".