11700013 has 4 divisors (see below), whose sum is σ = 12600028. Its totient is φ = 10800000.

The previous prime is 11700001. The next prime is 11700023. The reversal of 11700013 is 31000711.

11700013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5484964 + 6215049 = 2342^2 + 2493^2 .

It is a cyclic number.

It is not a de Polignac number, because 11700013 - 2²¹ = 9602861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 900001 = 11700013 / (1 + 1 + 7 + 0 + 0 + 0 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11699966 and 11700002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11700023) 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, 449988 + ... + 450013.

It is an arithmetic number, because the mean of its divisors is an integer number (3150007).

Almost surely, 2^11700013 is an apocalyptic number.

11700013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11700013 is a deficient number, since it is larger than the sum of its proper divisors (900015).

11700013 is an equidigital number, since it uses as much as digits as its factorization.

11700013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900014.

The product of its (nonzero) digits is 21, while the sum is 13.

The square root of 11700013 is about 3420.5281755893. The cubic root of 11700013 is about 227.0189521460.

Adding to 11700013 its reverse (31000711), we get a palindrome (42700724).

The spelling of 11700013 in words is "eleven million, seven hundred thousand, thirteen".