11331131203021 has 16 divisors (see below), whose sum is σ = 13004586115200. Its totient is φ = 9671441131008.

The previous prime is 11331131203009. The next prime is 11331131203031. The reversal of 11331131203021 is 12030213113311.

It is a cyclic number.

It is not a de Polignac number, because 11331131203021 - 2³³ = 11322541268429 is a prime.

It is a super-2 number, since 2×11331131203021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331131202983 and 11331131203001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331131203001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1903036 + ... + 5126773.

It is an arithmetic number, because the mean of its divisors is an integer number (812786632200).

Almost surely, 2^{11331131203021} is an apocalyptic number.

It is an amenable number.

11331131203021 is a deficient number, since it is larger than the sum of its proper divisors (1673454912179).

11331131203021 is an equidigital number, since it uses as much as digits as its factorization.

11331131203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7030788.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 11331131203021 its reverse (12030213113311), we get a palindrome (23361344316332).

The spelling of 11331131203021 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, two hundred three thousand, twenty-one".