11391293 has 2 divisors, whose sum is σ = 11391294. Its totient is φ = 11391292.

The previous prime is 11391277. The next prime is 11391329. The reversal of 11391293 is 39219311.

Together with next prime (11391329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10252804 + 1138489 = 3202^2 + 1067^2 .

It is a cyclic number.

It is not a de Polignac number, because 11391293 - 2⁴ = 11391277 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11391223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5695646 + 5695647.

It is an arithmetic number, because the mean of its divisors is an integer number (5695647).

Almost surely, 2^11391293 is an apocalyptic number.

It is an amenable number.

11391293 is a deficient number, since it is larger than the sum of its proper divisors (1).

11391293 is an equidigital number, since it uses as much as digits as its factorization.

11391293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 29.

The square root of 11391293 is about 3375.0989615121. The cubic root of 11391293 is about 225.0043982679.

The spelling of 11391293 in words is "eleven million, three hundred ninety-one thousand, two hundred ninety-three".