11332321131 has 4 divisors (see below), whose sum is σ = 15109761512. Its totient is φ = 7554880752.

The previous prime is 11332321127. The next prime is 11332321163. The reversal of 11332321131 is 13112323311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13112323311 = 3 ⋅4370774437.

It is not a de Polignac number, because 11332321131 - 2² = 11332321127 is a prime.

It is a super-2 number, since 2×11332321131² (a number of 21 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 = 11332321098 and 11332321107.

It is not an unprimeable number, because it can be changed into a prime (11332321171) 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, 1888720186 + ... + 1888720191.

It is an arithmetic number, because the mean of its divisors is an integer number (3777440378).

Almost surely, 2^11332321131 is an apocalyptic number.

11332321131 is a deficient number, since it is larger than the sum of its proper divisors (3777440381).

11332321131 is an equidigital number, since it uses as much as digits as its factorization.

11332321131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777440380.

The product of its digits is 324, while the sum is 21.

Adding to 11332321131 its reverse (13112323311), we get a palindrome (24444644442).

The spelling of 11332321131 in words is "eleven billion, three hundred thirty-two million, three hundred twenty-one thousand, one hundred thirty-one".