11047431 has 8 divisors (see below), whose sum is σ = 15072640. Its totient is φ = 7193592.

The previous prime is 11047411. The next prime is 11047441. The reversal of 11047431 is 13474011.

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

It is not a de Polignac number, because 11047431 - 2⁶ = 11047367 is a prime.

It is a super-2 number, since 2×11047431² = 244091463399522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11047398 and 11047407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11047411) 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, 42691 + ... + 42948.

It is an arithmetic number, because the mean of its divisors is an integer number (1884080).

Almost surely, 2^11047431 is an apocalyptic number.

11047431 is a deficient number, since it is larger than the sum of its proper divisors (4025209).

11047431 is an equidigital number, since it uses as much as digits as its factorization.

11047431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85685.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 11047431 is about 3323.7675911531. The cubic root of 11047431 is about 222.7172040480.

The spelling of 11047431 in words is "eleven million, forty-seven thousand, four hundred thirty-one".