11553231033 has 12 divisors (see below), whose sum is σ = 17263449060. Its totient is φ = 7436562336.

The previous prime is 11553231017. The next prime is 11553231061. The reversal of 11553231033 is 33013235511.

11553231033 is a `hidden beast` number, since 1 + 1 + 553 + 2 + 3 + 103 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1823973264 + 9729257769 = 42708^2 + 98637^2 .

It is not a de Polignac number, because 11553231033 - 2⁴ = 11553231017 is a prime.

It is a super-4 number, since 4×11553231033⁴ (a number of 41 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11553230988 and 11553231006.

It is not an unprimeable number, because it can be changed into a prime (11553231133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22132366 + ... + 22132887.

It is an arithmetic number, because the mean of its divisors is an integer number (1438620755).

Almost surely, 2^11553231033 is an apocalyptic number.

It is an amenable number.

11553231033 is a deficient number, since it is larger than the sum of its proper divisors (5710218027).

11553231033 is a wasteful number, since it uses less digits than its factorization.

11553231033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44265288 (or 44265285 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

Adding to 11553231033 its reverse (33013235511), we get a palindrome (44566466544).

The spelling of 11553231033 in words is "eleven billion, five hundred fifty-three million, two hundred thirty-one thousand, thirty-three".