12111131100512 has 12 divisors (see below), whose sum is σ = 23843789354196. Its totient is φ = 6055565550240.

The previous prime is 12111131100503. The next prime is 12111131100583. The reversal of 12111131100512 is 21500113111121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189236423414 + ... + 189236423477.

It is an arithmetic number, because the mean of its divisors is an integer number (1986982446183).

Almost surely, 2^{12111131100512} is an apocalyptic number.

It is an amenable number.

12111131100512 is a deficient number, since it is larger than the sum of its proper divisors (11732658253684).

12111131100512 is an equidigital number, since it uses as much as digits as its factorization.

12111131100512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378472846901 (or 378472846893 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 20.

Adding to 12111131100512 its reverse (21500113111121), we get a palindrome (33611244211633).

The spelling of 12111131100512 in words is "twelve trillion, one hundred eleven billion, one hundred thirty-one million, one hundred thousand, five hundred twelve".