11100120311131 has 4 divisors (see below), whose sum is σ = 11358262643992. Its totient is φ = 10841977978272.

The previous prime is 11100120311129. The next prime is 11100120311207. The reversal of 11100120311131 is 13111302100111.

11100120311131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11100120311131 - 2¹ = 11100120311129 is a prime.

It is a super-2 number, since 2×11100120311131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100120381131) 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, 129071166366 + ... + 129071166451.

It is an arithmetic number, because the mean of its divisors is an integer number (2839565660998).

Almost surely, 2^{11100120311131} is an apocalyptic number.

11100120311131 is a deficient number, since it is larger than the sum of its proper divisors (258142332861).

11100120311131 is an equidigital number, since it uses as much as digits as its factorization.

11100120311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258142332860.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 11100120311131 its reverse (13111302100111), we get a palindrome (24211422411242).

The spelling of 11100120311131 in words is "eleven trillion, one hundred billion, one hundred twenty million, three hundred eleven thousand, one hundred thirty-one".