11013111131 has 8 divisors (see below), whose sum is σ = 12193621824. Its totient is φ = 9862486920.

The previous prime is 11013111077. The next prime is 11013111143. The reversal of 11013111131 is 13111131011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11013111131 is a prime.

It is a super-3 number, since 3×11013111131³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11013111191) 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 7 ways as a sum of consecutive naturals, for example, 7470845 + ... + 7472318.

It is an arithmetic number, because the mean of its divisors is an integer number (1524202728).

Almost surely, 2^11013111131 is an apocalyptic number.

11013111131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11013111131 is a deficient number, since it is larger than the sum of its proper divisors (1180510693).

11013111131 is a wasteful number, since it uses less digits than its factorization.

11013111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14943241.

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

Adding to 11013111131 its reverse (13111131011), we get a palindrome (24124242142).

The spelling of 11013111131 in words is "eleven billion, thirteen million, one hundred eleven thousand, one hundred thirty-one".