11143923 has 36 divisors (see below), whose sum is σ = 18127368. Its totient is φ = 6068160.

The previous prime is 11143921. The next prime is 11143931. The reversal of 11143923 is 32934111.

11143923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11143923 - 2¹ = 11143921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11143893 and 11143902.

It is not an unprimeable number, because it can be changed into a prime (11143921) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 259140 + ... + 259182.

It is an arithmetic number, because the mean of its divisors is an integer number (503538).

Almost surely, 2^11143923 is an apocalyptic number.

11143923 is a deficient number, since it is larger than the sum of its proper divisors (6983445).

11143923 is an equidigital number, since it uses as much as digits as its factorization.

11143923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 94 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

The square root of 11143923 is about 3338.2514884292. The cubic root of 11143923 is about 223.3637544264.

The spelling of 11143923 in words is "eleven million, one hundred forty-three thousand, nine hundred twenty-three".