20112313111121 has 8 divisors (see below), whose sum is σ = 25075091671104. Its totient is φ = 15671932294320.

The previous prime is 20112313111087. The next prime is 20112313111133. The reversal of 20112313111121 is 12111131321102.

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 20112313111121 - 2³⁸ = 19837435204177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20112313111093 and 20112313111102.

It is not an unprimeable number, because it can be changed into a prime (20112313111181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130599435710 + ... + 130599435863.

It is an arithmetic number, because the mean of its divisors is an integer number (3134386458888).

Almost surely, 2^{20112313111121} is an apocalyptic number.

It is an amenable number.

20112313111121 is a deficient number, since it is larger than the sum of its proper divisors (4962778559983).

20112313111121 is a wasteful number, since it uses less digits than its factorization.

20112313111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261198871591.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 20112313111121 its reverse (12111131321102), we get a palindrome (32223444432223).

It can be divided in two parts, 2011 and 2313111121, that added together give a palindrome (2313113132).

The spelling of 20112313111121 in words is "twenty trillion, one hundred twelve billion, three hundred thirteen million, one hundred eleven thousand, one hundred twenty-one".