11113111131102 has 48 divisors (see below), whose sum is σ = 25154589777408. Its totient is φ = 3541683283920.

The previous prime is 11113111131091. The next prime is 11113111131103. The reversal of 11113111131102 is 20113111131111.

It is a happy number.

11113111131102 is a `hidden beast` number, since 111 + 131 + 111 + 311 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113111131103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119929408 + ... + 120022035.

It is an arithmetic number, because the mean of its divisors is an integer number (524053953696).

Almost surely, 2^{11113111131102} is an apocalyptic number.

11113111131102 is an abundant number, since it is smaller than the sum of its proper divisors (14041478646306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11113111131102 is a wasteful number, since it uses less digits than its factorization.

11113111131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239951565 (or 239951562 counting only the distinct ones).

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

Adding to 11113111131102 its reverse (20113111131111), we get a palindrome (31226222262213).

Subtracting 11113111131102 from its reverse (20113111131111), we obtain a palindrome (9000000000009).

The spelling of 11113111131102 in words is "eleven trillion, one hundred thirteen billion, one hundred eleven million, one hundred thirty-one thousand, one hundred two".