113111131102 has 4 divisors (see below), whose sum is σ = 169666696656. Its totient is φ = 56555565550.

The previous prime is 113111131087. The next prime is 113111131121. The reversal of 113111131102 is 201131111311.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 28277782774 + ... + 28277782777.

It is an arithmetic number, because the mean of its divisors is an integer number (42416674164).

Almost surely, 2^113111131102 is an apocalyptic number.

113111131102 is a deficient number, since it is larger than the sum of its proper divisors (56555565554).

113111131102 is an equidigital number, since it uses as much as digits as its factorization.

113111131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56555565553.

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

Adding to 113111131102 its reverse (201131111311), we get a palindrome (314242242413).

The spelling of 113111131102 in words is "one hundred thirteen billion, one hundred eleven million, one hundred thirty-one thousand, one hundred two".