20112012113 has 2 divisors, whose sum is σ = 20112012114. Its totient is φ = 20112012112.

The previous prime is 20112012101. The next prime is 20112012139. The reversal of 20112012113 is 31121021102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15199684369 + 4912327744 = 123287^2 + 70088^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112012113 - 2¹⁸ = 20111749969 is a prime.

It is not a weakly prime, because it can be changed into another prime (20112012313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056006056 + 10056006057.

It is an arithmetic number, because the mean of its divisors is an integer number (10056006057).

Almost surely, 2^20112012113 is an apocalyptic number.

It is an amenable number.

20112012113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112012113 is an equidigital number, since it uses as much as digits as its factorization.

20112012113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20112012113 its reverse (31121021102), we get a palindrome (51233033215).

The spelling of 20112012113 in words is "twenty billion, one hundred twelve million, twelve thousand, one hundred thirteen".