11321132311331 has 4 divisors (see below), whose sum is σ = 11326161692664. Its totient is φ = 11316102930000.

The previous prime is 11321132311271. The next prime is 11321132311339. The reversal of 11321132311331 is 13311323112311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11321132311331 - 2³⁸ = 11046254404387 is a prime.

It is a super-2 number, since 2×11321132311331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11321132311331.

It is not an unprimeable number, because it can be changed into a prime (11321132311339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2514687290 + ... + 2514691791.

It is an arithmetic number, because the mean of its divisors is an integer number (2831540423166).

Almost surely, 2^{11321132311331} is an apocalyptic number.

11321132311331 is a deficient number, since it is larger than the sum of its proper divisors (5029381333).

11321132311331 is an equidigital number, since it uses as much as digits as its factorization.

11321132311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029381332.

The product of its digits is 972, while the sum is 26.

Adding to 11321132311331 its reverse (13311323112311), we get a palindrome (24632455423642).

The spelling of 11321132311331 in words is "eleven trillion, three hundred twenty-one billion, one hundred thirty-two million, three hundred eleven thousand, three hundred thirty-one".