11522013 has 4 divisors (see below), whose sum is σ = 15362688. Its totient is φ = 7681340.

The previous prime is 11522009. The next prime is 11522023. The reversal of 11522013 is 31022511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11522013 - 2² = 11522009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11521983 and 11522001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11522023) 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, 1920333 + ... + 1920338.

It is an arithmetic number, because the mean of its divisors is an integer number (3840672).

Almost surely, 2^11522013 is an apocalyptic number.

It is an amenable number.

11522013 is a deficient number, since it is larger than the sum of its proper divisors (3840675).

11522013 is an equidigital number, since it uses as much as digits as its factorization.

11522013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840674.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 11522013 is about 3394.4090796485. The cubic root of 11522013 is about 225.8618010648.

Adding to 11522013 its reverse (31022511), we get a palindrome (42544524).

The spelling of 11522013 in words is "eleven million, five hundred twenty-two thousand, thirteen".