20212303111 has 32 divisors (see below), whose sum is σ = 27352055808. Its totient is φ = 14423754240.

The previous prime is 20212303099. The next prime is 20212303117. The reversal of 20212303111 is 11130321202.

It is not a de Polignac number, because 20212303111 - 2⁵ = 20212303079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212303117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47631 + ... + 206623.

It is an arithmetic number, because the mean of its divisors is an integer number (854751744).

Almost surely, 2^20212303111 is an apocalyptic number.

20212303111 is a deficient number, since it is larger than the sum of its proper divisors (7139752697).

20212303111 is a wasteful number, since it uses less digits than its factorization.

20212303111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159151.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20212303111 its reverse (11130321202), we get a palindrome (31342624313).

It can be divided in two parts, 20212 and 303111, that added together give a palindrome (323323).

The spelling of 20212303111 in words is "twenty billion, two hundred twelve million, three hundred three thousand, one hundred eleven".