113020212113 has 4 divisors (see below), whose sum is σ = 113021207988. Its totient is φ = 113019216240.

The previous prime is 113020212091. The next prime is 113020212127. The reversal of 113020212113 is 311212020311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 37555726849 + 75464485264 = 193793^2 + 274708^2 .

It is a cyclic number.

It is not a de Polignac number, because 113020212113 - 2¹⁸ = 113019949969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113020212091 and 113020212100.

It is not an unprimeable number, because it can be changed into a prime (113020212713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302006 + ... + 563247.

It is an arithmetic number, because the mean of its divisors is an integer number (28255301997).

Almost surely, 2^113020212113 is an apocalyptic number.

It is an amenable number.

113020212113 is a deficient number, since it is larger than the sum of its proper divisors (995875).

113020212113 is an equidigital number, since it uses as much as digits as its factorization.

113020212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995874.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 113020212113 its reverse (311212020311), we get a palindrome (424232232424).

The spelling of 113020212113 in words is "one hundred thirteen billion, twenty million, two hundred twelve thousand, one hundred thirteen".