113212212013 has 2 divisors, whose sum is σ = 113212212014. Its totient is φ = 113212212012.

The previous prime is 113212211999. The next prime is 113212212041. The reversal of 113212212013 is 310212212311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70385151204 + 42827060809 = 265302^2 + 206947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113212212013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113212212053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56606106006 + 56606106007.

It is an arithmetic number, because the mean of its divisors is an integer number (56606106007).

Almost surely, 2^113212212013 is an apocalyptic number.

It is an amenable number.

113212212013 is a deficient number, since it is larger than the sum of its proper divisors (1).

113212212013 is an equidigital number, since it uses as much as digits as its factorization.

113212212013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 113212212013 its reverse (310212212311), we get a palindrome (423424424324).

The spelling of 113212212013 in words is "one hundred thirteen billion, two hundred twelve million, two hundred twelve thousand, thirteen".