11331032031172 has 24 divisors (see below), whose sum is σ = 22664785391360. Its totient is φ = 4855573442880.

The previous prime is 11331032031161. The next prime is 11331032031173. The reversal of 11331032031172 is 27113023013311.

11331032031172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 11331032031172.

It is not an unprimeable number, because it can be changed into a prime (11331032031173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24060204 + ... + 24526627.

Almost surely, 2^{11331032031172} is an apocalyptic number.

It is an amenable number.

11331032031172 is an abundant number, since it is smaller than the sum of its proper divisors (11333753360188).

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

11331032031172 is a wasteful number, since it uses less digits than its factorization.

11331032031172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48595171 (or 48595169 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

Adding to 11331032031172 its reverse (27113023013311), we get a palindrome (38444055044483).

The spelling of 11331032031172 in words is "eleven trillion, three hundred thirty-one billion, thirty-two million, thirty-one thousand, one hundred seventy-two".