11331323122131 has 40 divisors (see below), whose sum is σ = 17073293600000. Its totient is φ = 7489145012400.

The previous prime is 11331323122121. The next prime is 11331323122157. The reversal of 11331323122131 is 13122132313311.

11331323122131 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 132 + 312 + 213 + 1 = 666.

It is not a de Polignac number, because 11331323122131 - 2³³ = 11322733187539 is a prime.

It is a super-2 number, since 2×11331323122131² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331323122095 and 11331323122104.

It is not an unprimeable number, because it can be changed into a prime (11331323122121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5174970 + ... + 7031568.

It is an arithmetic number, because the mean of its divisors is an integer number (426832340000).

Almost surely, 2^{11331323122131} is an apocalyptic number.

11331323122131 is a deficient number, since it is larger than the sum of its proper divisors (5741970477869).

11331323122131 is a wasteful number, since it uses less digits than its factorization.

11331323122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857261 (or 1857252 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

Adding to 11331323122131 its reverse (13122132313311), we get a palindrome (24453455435442).

The spelling of 11331323122131 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty-three million, one hundred twenty-two thousand, one hundred thirty-one".