11801124 has 18 divisors (see below), whose sum is σ = 29830710. Its totient is φ = 3933696.

The previous prime is 11801063. The next prime is 11801129. The reversal of 11801124 is 42110811.

It can be written as a sum of positive squares in only one way, i.e., 11778624 + 22500 = 3432^2 + 150^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11801097 and 11801106.

It is not an unprimeable number, because it can be changed into a prime (11801129) 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, 163869 + ... + 163940.

Almost surely, 2^11801124 is an apocalyptic number.

It is an amenable number.

11801124 is an abundant number, since it is smaller than the sum of its proper divisors (18029586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11801124 is a wasteful number, since it uses less digits than its factorization.

11801124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327819 (or 327814 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 11801124 is about 3435.2764080929. The cubic root of 11801124 is about 227.6710399143.

Adding to 11801124 its reverse (42110811), we get a palindrome (53911935).

It can be divided in two parts, 1180 and 1124, that added together give a square (2304 = 48²).

The spelling of 11801124 in words is "eleven million, eight hundred one thousand, one hundred twenty-four".