11331131121321 has 32 divisors (see below), whose sum is σ = 16574504601600. Its totient is φ = 6828664438080.

The previous prime is 11331131121227. The next prime is 11331131121329. The reversal of 11331131121321 is 12312113113311.

11331131121321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11331131121321 - 2³⁷ = 11193692167849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11331131121291 and 11331131121300.

It is not an unprimeable number, because it can be changed into a prime (11331131121329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198913375 + ... + 198970331.

It is an arithmetic number, because the mean of its divisors is an integer number (517953268800).

Almost surely, 2^{11331131121321} is an apocalyptic number.

11331131121321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11331131121321 is a deficient number, since it is larger than the sum of its proper divisors (5243373480279).

11331131121321 is a wasteful number, since it uses less digits than its factorization.

11331131121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90829.

The product of its digits is 324, while the sum is 24.

Adding to 11331131121321 its reverse (12312113113311), we get a palindrome (23643244234632).

The spelling of 11331131121321 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, one hundred twenty-one thousand, three hundred twenty-one".