11553031044 has 36 divisors (see below), whose sum is σ = 29211772044. Its totient is φ = 3849918912.

The previous prime is 11553031043. The next prime is 11553031097. The reversal of 11553031044 is 44013035511.

It is a happy number.

11553031044 is a `hidden beast` number, since 1 + 1 + 553 + 0 + 3 + 104 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10330689600 + 1222341444 = 101640^2 + 34962^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 11553030999 and 11553031017.

It is not an unprimeable number, because it can be changed into a prime (11553031043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88734 + ... + 176010.

Almost surely, 2^11553031044 is an apocalyptic number.

It is an amenable number.

11553031044 is an abundant number, since it is smaller than the sum of its proper divisors (17658741000).

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

11553031044 is a wasteful number, since it uses less digits than its factorization.

11553031044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90964 (or 90959 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 11553031044 its reverse (44013035511), we get a palindrome (55566066555).

The spelling of 11553031044 in words is "eleven billion, five hundred fifty-three million, thirty-one thousand, forty-four".