11321015 has 4 divisors (see below), whose sum is σ = 13585224. Its totient is φ = 9056808.

The previous prime is 11321003. The next prime is 11321029. The reversal of 11321015 is 51012311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51012311 = 7 ⋅7287473.

It is a cyclic number.

It is not a de Polignac number, because 11321015 - 2¹⁸ = 11058871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1132097 + ... + 1132106.

It is an arithmetic number, because the mean of its divisors is an integer number (3396306).

Almost surely, 2^11321015 is an apocalyptic number.

11321015 is a deficient number, since it is larger than the sum of its proper divisors (2264209).

11321015 is an equidigital number, since it uses as much as digits as its factorization.

11321015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264208.

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

The square root of 11321015 is about 3364.6716035893. The cubic root of 11321015 is about 224.5407257099.

Adding to 11321015 its reverse (51012311), we get a palindrome (62333326).

The spelling of 11321015 in words is "eleven million, three hundred twenty-one thousand, fifteen".