113211013 has 4 divisors (see below), whose sum is σ = 113344588. Its totient is φ = 113077440.

The previous prime is 113211011. The next prime is 113211019. The reversal of 113211013 is 310112311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65642404 + 47568609 = 8102^2 + 6897^2 .

It is a cyclic number.

It is not a de Polignac number, because 113211013 - 2¹ = 113211011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113210984 and 113211002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65508 + ... + 67213.

It is an arithmetic number, because the mean of its divisors is an integer number (28336147).

Almost surely, 2^113211013 is an apocalyptic number.

It is an amenable number.

113211013 is a deficient number, since it is larger than the sum of its proper divisors (133575).

113211013 is an equidigital number, since it uses as much as digits as its factorization.

113211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133574.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 113211013 is about 10640.0664001688. The cubic root of 113211013 is about 483.7595580197.

Adding to 113211013 its reverse (310112311), we get a palindrome (423323324).

The spelling of 113211013 in words is "one hundred thirteen million, two hundred eleven thousand, thirteen".