20132023111 has 4 divisors (see below), whose sum is σ = 20161158424. Its totient is φ = 20102887800.

The previous prime is 20132023057. The next prime is 20132023127. The reversal of 20132023111 is 11132023102.

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

It is a cyclic number.

It is not a de Polignac number, because 20132023111 - 2¹⁹ = 20131498823 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 (20132023411) 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, 14566620 + ... + 14568001.

It is an arithmetic number, because the mean of its divisors is an integer number (5040289606).

Almost surely, 2^20132023111 is an apocalyptic number.

20132023111 is a deficient number, since it is larger than the sum of its proper divisors (29135313).

20132023111 is an equidigital number, since it uses as much as digits as its factorization.

20132023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29135312.

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

Adding to 20132023111 its reverse (11132023102), we get a palindrome (31264046213).

Subtracting from 20132023111 its reverse (11132023102), we obtain a palindrome (9000000009).

The spelling of 20132023111 in words is "twenty billion, one hundred thirty-two million, twenty-three thousand, one hundred eleven".