11471431 has 8 divisors (see below), whose sum is σ = 12003264. Its totient is φ = 10951680.

The previous prime is 11471423. The next prime is 11471483. The reversal of 11471431 is 13417411.

It is a happy number.

11471431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11471431 - 2³ = 11471423 is a prime.

It is a super-2 number, since 2×11471431² = 263187458375522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11471491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050 + ... + 4903.

It is an arithmetic number, because the mean of its divisors is an integer number (1500408).

Almost surely, 2^11471431 is an apocalyptic number.

11471431 is a deficient number, since it is larger than the sum of its proper divisors (531833).

11471431 is an equidigital number, since it uses as much as digits as its factorization.

11471431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041.

The product of its digits is 336, while the sum is 22.

The square root of 11471431 is about 3386.9501029687. The cubic root of 11471431 is about 225.5308027532.

Adding to 11471431 its reverse (13417411), we get a palindrome (24888842).

The spelling of 11471431 in words is "eleven million, four hundred seventy-one thousand, four hundred thirty-one".