11211513 has 8 divisors (see below), whose sum is σ = 14964576. Its totient is φ = 7466400.

The previous prime is 11211503. The next prime is 11211523. The reversal of 11211513 is 31511211.

It is an interprime number because it is at equal distance from previous prime (11211503) and next prime (11211523).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11211513 - 2²⁰ = 10162937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11211492 and 11211501.

It is not an unprimeable number, because it can be changed into a prime (11211503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3373 + ... + 5813.

It is an arithmetic number, because the mean of its divisors is an integer number (1870572).

Almost surely, 2^11211513 is an apocalyptic number.

It is an amenable number.

11211513 is a deficient number, since it is larger than the sum of its proper divisors (3753063).

11211513 is a wasteful number, since it uses less digits than its factorization.

11211513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3975.

The product of its digits is 30, while the sum is 15.

The square root of 11211513 is about 3348.3597476974. The cubic root of 11211513 is about 223.8144256495.

Adding to 11211513 its reverse (31511211), we get a palindrome (42722724).

The spelling of 11211513 in words is "eleven million, two hundred eleven thousand, five hundred thirteen".