12111031012302 has 48 divisors (see below), whose sum is σ = 27622045825920. Its totient is φ = 3824481258000.

The previous prime is 12111031012279. The next prime is 12111031012331. The reversal of 12111031012302 is 20321013011121.

12111031012302 is a `hidden beast` number, since 12 + 1 + 110 + 310 + 1 + 230 + 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 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 in 23 ways as a sum of consecutive naturals, for example, 28321177 + ... + 28745627.

It is an arithmetic number, because the mean of its divisors is an integer number (575459288040).

Almost surely, 2^{12111031012302} is an apocalyptic number.

12111031012302 is an abundant number, since it is smaller than the sum of its proper divisors (15511014813618).

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

12111031012302 is a wasteful number, since it uses less digits than its factorization.

12111031012302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507909 (or 507906 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12111031012302 its reverse (20321013011121), we get a palindrome (32432044023423).

The spelling of 12111031012302 in words is "twelve trillion, one hundred eleven billion, thirty-one million, twelve thousand, three hundred two".