11113513 has 2 divisors, whose sum is σ = 11113514. Its totient is φ = 11113512.

The previous prime is 11113507. The next prime is 11113547. The reversal of 11113513 is 31531111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11108889 + 4624 = 3333^2 + 68^2 .

It is a cyclic number.

It is not a de Polignac number, because 11113513 - 2⁵ = 11113481 is a prime.

It is not a weakly prime, because it can be changed into another prime (11113213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556756 + 5556757.

It is an arithmetic number, because the mean of its divisors is an integer number (5556757).

Almost surely, 2^11113513 is an apocalyptic number.

It is an amenable number.

11113513 is a deficient number, since it is larger than the sum of its proper divisors (1).

11113513 is an equidigital number, since it uses as much as digits as its factorization.

11113513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45, while the sum is 16.

The square root of 11113513 is about 3333.6935971982. The cubic root of 11113513 is about 223.1603945712.

Adding to 11113513 its reverse (31531111), we get a palindrome (42644624).

It can be divided in two parts, 1111 and 3513, that added together give a square (4624 = 68²).

The spelling of 11113513 in words is "eleven million, one hundred thirteen thousand, five hundred thirteen".