11173431 has 8 divisors (see below), whose sum is σ = 15142384. Its totient is φ = 7326720.

The previous prime is 11173429. The next prime is 11173433. The reversal of 11173431 is 13437111.

It is an interprime number because it is at equal distance from previous prime (11173429) and next prime (11173433).

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

It is not a de Polignac number, because 11173431 - 2¹ = 11173429 is a prime.

It is a super-2 number, since 2×11173431² = 249691120623522, 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 = 11173398 and 11173407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11173433) 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, 30346 + ... + 30711.

It is an arithmetic number, because the mean of its divisors is an integer number (1892798).

Almost surely, 2^11173431 is an apocalyptic number.

11173431 is a deficient number, since it is larger than the sum of its proper divisors (3968953).

11173431 is an equidigital number, since it uses as much as digits as its factorization.

11173431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61121.

The product of its digits is 252, while the sum is 21.

The square root of 11173431 is about 3342.6682455787. The cubic root of 11173431 is about 223.5607290093.

The spelling of 11173431 in words is "eleven million, one hundred seventy-three thousand, four hundred thirty-one".