20112332011 has 4 divisors (see below), whose sum is σ = 20121151624. Its totient is φ = 20103512400.

The previous prime is 20112331973. The next prime is 20112332041. The reversal of 20112332011 is 11023321102.

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 20112332011 - 2¹⁵ = 20112299243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112332041) 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, 4406385 + ... + 4410946.

It is an arithmetic number, because the mean of its divisors is an integer number (5030287906).

Almost surely, 2^20112332011 is an apocalyptic number.

20112332011 is a deficient number, since it is larger than the sum of its proper divisors (8819613).

20112332011 is an equidigital number, since it uses as much as digits as its factorization.

20112332011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819612.

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

Adding to 20112332011 its reverse (11023321102), we get a palindrome (31135653113).

The spelling of 20112332011 in words is "twenty billion, one hundred twelve million, three hundred thirty-two thousand, eleven".