12011111102 has 8 divisors (see below), whose sum is σ = 18018802200. Its totient is φ = 6004843704.

The previous prime is 12011111093. The next prime is 12011111111. The reversal of 12011111102 is 20111111021.

It is an interprime number because it is at equal distance from previous prime (12011111093) and next prime (12011111111).

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

It is a congruent number.

It is an unprimeable number.

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, 334577 + ... + 368732.

It is an arithmetic number, because the mean of its divisors is an integer number (2252350275).

Almost surely, 2^12011111102 is an apocalyptic number.

12011111102 is a deficient number, since it is larger than the sum of its proper divisors (6007691098).

12011111102 is an equidigital number, since it uses as much as digits as its factorization.

12011111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711850.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12011111102 its reverse (20111111021), we get a palindrome (32122222123).

The spelling of 12011111102 in words is "twelve billion, eleven million, one hundred eleven thousand, one hundred two".