11394431 has 2 divisors, whose sum is σ = 11394432. Its totient is φ = 11394430.

The previous prime is 11394421. The next prime is 11394443. The reversal of 11394431 is 13449311.

It is a weak prime.

It is an emirp because it is prime and its reverse (13449311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11394431 - 2⁶ = 11394367 is a prime.

It is a super-3 number, since 3×11394431³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11394431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11394401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5697215 + 5697216.

It is an arithmetic number, because the mean of its divisors is an integer number (5697216).

Almost surely, 2^11394431 is an apocalyptic number.

11394431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11394431 is an equidigital number, since it uses as much as digits as its factorization.

11394431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 11394431 is about 3375.5638047591. The cubic root of 11394431 is about 225.0250572917.

The spelling of 11394431 in words is "eleven million, three hundred ninety-four thousand, four hundred thirty-one".