11803431 has 4 divisors (see below), whose sum is σ = 15737912. Its totient is φ = 7868952.

The previous prime is 11803411. The next prime is 11803453. The reversal of 11803431 is 13430811.

11803431 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11803431 - 2⁵ = 11803399 is a prime.

It is a super-3 number, since 3×11803431³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11803398 and 11803407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11803411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967236 + ... + 1967241.

It is an arithmetic number, because the mean of its divisors is an integer number (3934478).

Almost surely, 2^11803431 is an apocalyptic number.

11803431 is a deficient number, since it is larger than the sum of its proper divisors (3934481).

11803431 is an equidigital number, since it uses as much as digits as its factorization.

11803431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934480.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 11803431 is about 3435.6121725247. The cubic root of 11803431 is about 227.6858747404.

The spelling of 11803431 in words is "eleven million, eight hundred three thousand, four hundred thirty-one".