20113212230113 has 2 divisors, whose sum is σ = 20113212230114. Its totient is φ = 20113212230112.

The previous prime is 20113212230081. The next prime is 20113212230131. The reversal of 20113212230113 is 31103221231102.

Together with next prime (20113212230131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10475987375569 + 9637224854544 = 3236663^2 + 3104388^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113212230113 - 2⁵ = 20113212230081 is a prime.

It is not a weakly prime, because it can be changed into another prime (20113212230173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056606115056 + 10056606115057.

It is an arithmetic number, because the mean of its divisors is an integer number (10056606115057).

Almost surely, 2^{20113212230113} is an apocalyptic number.

It is an amenable number.

20113212230113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113212230113 is an equidigital number, since it uses as much as digits as its factorization.

20113212230113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20113212230113 its reverse (31103221231102), we get a palindrome (51216433461215).

The spelling of 20113212230113 in words is "twenty trillion, one hundred thirteen billion, two hundred twelve million, two hundred thirty thousand, one hundred thirteen".