11331020120131 has 4 divisors (see below), whose sum is σ = 11594532215992. Its totient is φ = 11067508024272.

The previous prime is 11331020120111. The next prime is 11331020120149. The reversal of 11331020120131 is 13102102013311.

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 11331020120131 - 2³¹ = 11328872636483 is a prime.

It is a super-2 number, since 2×11331020120131² (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 = 11331020120099 and 11331020120108.

It is not an unprimeable number, because it can be changed into a prime (11331020120111) 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, 131756047866 + ... + 131756047951.

It is an arithmetic number, because the mean of its divisors is an integer number (2898633053998).

Almost surely, 2^{11331020120131} is an apocalyptic number.

11331020120131 is a deficient number, since it is larger than the sum of its proper divisors (263512095861).

11331020120131 is an equidigital number, since it uses as much as digits as its factorization.

11331020120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263512095860.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 11331020120131 its reverse (13102102013311), we get a palindrome (24433122133442).

The spelling of 11331020120131 in words is "eleven trillion, three hundred thirty-one billion, twenty million, one hundred twenty thousand, one hundred thirty-one".