20112113 has 8 divisors (see below), whose sum is σ = 23039232. Its totient is φ = 17198496.

The previous prime is 20112107. The next prime is 20112119. The reversal of 20112113 is 31121102.

It is an interprime number because it is at equal distance from previous prime (20112107) and next prime (20112119).

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

It is not a de Polignac number, because 20112113 - 2¹² = 20108017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112094 and 20112103.

It is not an unprimeable number, because it can be changed into a prime (20112119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56 + ... + 6342.

It is an arithmetic number, because the mean of its divisors is an integer number (2879904).

Almost surely, 2^20112113 is an apocalyptic number.

It is an amenable number.

20112113 is a deficient number, since it is larger than the sum of its proper divisors (2927119).

20112113 is an equidigital number, since it uses as much as digits as its factorization.

20112113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 20112113 is about 4484.6530523553. The cubic root of 20112113 is about 271.9480193705.

Adding to 20112113 its reverse (31121102), we get a palindrome (51233215).

The spelling of 20112113 in words is "twenty million, one hundred twelve thousand, one hundred thirteen".