11451123 has 6 divisors (see below), whose sum is σ = 16540524. Its totient is φ = 7634076.

The previous prime is 11451119. The next prime is 11451131. The reversal of 11451123 is 32115411.

It is not a de Polignac number, because 11451123 - 2² = 11451119 is a prime.

It is a super-2 number, since 2×11451123² = 262256435922258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11451096 and 11451105.

It is not an unprimeable number, because it can be changed into a prime (11451113) 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, 636165 + ... + 636182.

It is an arithmetic number, because the mean of its divisors is an integer number (2756754).

Almost surely, 2^11451123 is an apocalyptic number.

11451123 is a deficient number, since it is larger than the sum of its proper divisors (5089401).

11451123 is a wasteful number, since it uses less digits than its factorization.

11451123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272353 (or 1272350 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 11451123 is about 3383.9507975146. The cubic root of 11451123 is about 225.3976375905.

Adding to 11451123 its reverse (32115411), we get a palindrome (43566534).

The spelling of 11451123 in words is "eleven million, four hundred fifty-one thousand, one hundred twenty-three".