11012513 has 4 divisors (see below), whose sum is σ = 11193108. Its totient is φ = 10831920.

The previous prime is 11012509. The next prime is 11012539. The reversal of 11012513 is 31521011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31521011 = 113 ⋅278947.

It can be written as a sum of positive squares in 2 ways, for example, as 3356224 + 7656289 = 1832^2 + 2767^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012513 - 2² = 11012509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012543) 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, 90206 + ... + 90327.

It is an arithmetic number, because the mean of its divisors is an integer number (2798277).

Almost surely, 2^11012513 is an apocalyptic number.

It is an amenable number.

11012513 is a deficient number, since it is larger than the sum of its proper divisors (180595).

11012513 is an equidigital number, since it uses as much as digits as its factorization.

11012513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180594.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 11012513 is about 3318.5106599196. The cubic root of 11012513 is about 222.4823063824.

Adding to 11012513 its reverse (31521011), we get a palindrome (42533524).

The spelling of 11012513 in words is "eleven million, twelve thousand, five hundred thirteen".