11320471 has 2 divisors, whose sum is σ = 11320472. Its totient is φ = 11320470.

The previous prime is 11320457. The next prime is 11320489. The reversal of 11320471 is 17402311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11320471 - 2⁷ = 11320343 is a prime.

It is a super-3 number, since 3×11320471³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11320571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660235 + 5660236.

It is an arithmetic number, because the mean of its divisors is an integer number (5660236).

Almost surely, 2^11320471 is an apocalyptic number.

11320471 is a deficient number, since it is larger than the sum of its proper divisors (1).

11320471 is an equidigital number, since it uses as much as digits as its factorization.

11320471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11320471 is about 3364.5907626337. The cubic root of 11320471 is about 224.5371290915.

Adding to 11320471 its reverse (17402311), we get a palindrome (28722782).

The spelling of 11320471 in words is "eleven million, three hundred twenty thousand, four hundred seventy-one".