11321123 has 6 divisors (see below), whose sum is σ = 12444012. Its totient is φ = 10291820.

The previous prime is 11321119. The next prime is 11321137. The reversal of 11321123 is 32112311.

It is not a de Polignac number, because 11321123 - 2² = 11321119 is a prime.

It is a super-2 number, since 2×11321123² = 256335651962258, 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 = 11321098 and 11321107.

It is not an unprimeable number, because it can be changed into a prime (11321153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46661 + ... + 46902.

It is an arithmetic number, because the mean of its divisors is an integer number (2074002).

Almost surely, 2^11321123 is an apocalyptic number.

11321123 is a deficient number, since it is larger than the sum of its proper divisors (1122889).

11321123 is an equidigital number, since it uses as much as digits as its factorization.

11321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93585 (or 93574 counting only the distinct ones).

The product of its digits is 36, while the sum is 14.

The square root of 11321123 is about 3364.6876526655. The cubic root of 11321123 is about 224.5414397307.

Adding to 11321123 its reverse (32112311), we get a palindrome (43433434).

It can be divided in two parts, 11 and 321123, that multiplied together give a palindrome (3532353).

The spelling of 11321123 in words is "eleven million, three hundred twenty-one thousand, one hundred twenty-three".