20112322011 has 16 divisors (see below), whose sum is σ = 28071364608. Its totient is φ = 12792931200.

The previous prime is 20112322007. The next prime is 20112322019. The reversal of 20112322011 is 11022321102.

It is not a de Polignac number, because 20112322011 - 2² = 20112322007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112322019) 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, 1516366 + ... + 1529571.

It is an arithmetic number, because the mean of its divisors is an integer number (1754460288).

Almost surely, 2^20112322011 is an apocalyptic number.

20112322011 is a deficient number, since it is larger than the sum of its proper divisors (7959042597).

20112322011 is a wasteful number, since it uses less digits than its factorization.

20112322011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046042.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20112322011 its reverse (11022321102), we get a palindrome (31134643113).

Subtracting from 20112322011 its reverse (11022321102), we obtain a palindrome (9090000909).

The spelling of 20112322011 in words is "twenty billion, one hundred twelve million, three hundred twenty-two thousand, eleven".