11257013 has 4 divisors (see below), whose sum is σ = 11518848. Its totient is φ = 10995180.

The previous prime is 11256997. The next prime is 11257019. The reversal of 11257013 is 31075211.

11257013 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11257013 - 2⁴ = 11256997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11257019) 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 3 ways as a sum of consecutive naturals, for example, 130853 + ... + 130938.

It is an arithmetic number, because the mean of its divisors is an integer number (2879712).

Almost surely, 2^11257013 is an apocalyptic number.

It is an amenable number.

11257013 is a deficient number, since it is larger than the sum of its proper divisors (261835).

11257013 is an equidigital number, since it uses as much as digits as its factorization.

11257013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261834.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 11257013 is about 3355.1472396901. The cubic root of 11257013 is about 224.1167877919.

The spelling of 11257013 in words is "eleven million, two hundred fifty-seven thousand, thirteen".