11110311131 has 4 divisors (see below), whose sum is σ = 11115039264. Its totient is φ = 11105583000.

The previous prime is 11110311119. The next prime is 11110311151. The reversal of 11110311131 is 13111301111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13111301111 = 1877 ⋅6985243.

It is a cyclic number.

It is not a de Polignac number, because 11110311131 - 2¹⁴ = 11110294747 is a prime.

It is a super-2 number, since 2×11110311131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11110311151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2360540 + ... + 2365241.

It is an arithmetic number, because the mean of its divisors is an integer number (2778759816).

Almost surely, 2^11110311131 is an apocalyptic number.

11110311131 is a deficient number, since it is larger than the sum of its proper divisors (4728133).

11110311131 is an equidigital number, since it uses as much as digits as its factorization.

11110311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728132.

The product of its (nonzero) digits is 9, while the sum is 14.

Adding to 11110311131 its reverse (13111301111), we get a palindrome (24221612242).

The spelling of 11110311131 in words is "eleven billion, one hundred ten million, three hundred eleven thousand, one hundred thirty-one".