20031122132111 has 8 divisors (see below), whose sum is σ = 20166186884064. Its totient is φ = 19896089068800.

The previous prime is 20031122132093. The next prime is 20031122132137. The reversal of 20031122132111 is 11123122113002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20031122132111 - 2²⁶ = 20031055023247 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 (20031122102111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6652970 + ... + 9182823.

It is an arithmetic number, because the mean of its divisors is an integer number (2520773360508).

Almost surely, 2^{20031122132111} is an apocalyptic number.

20031122132111 is a deficient number, since it is larger than the sum of its proper divisors (135064751953).

20031122132111 is a wasteful number, since it uses less digits than its factorization.

20031122132111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15844321.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20031122132111 its reverse (11123122113002), we get a palindrome (31154244245113).

The spelling of 20031122132111 in words is "twenty trillion, thirty-one billion, one hundred twenty-two million, one hundred thirty-two thousand, one hundred eleven".