12011100120312 has 32 divisors (see below), whose sum is σ = 30839311122000. Its totient is φ = 3895491930624.

The previous prime is 12011100120307. The next prime is 12011100120329. The reversal of 12011100120312 is 21302100111021.

It is a super-2 number, since 2×12011100120312² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011100120291 and 12011100120300.

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 7 ways as a sum of consecutive naturals, for example, 6763005937 + ... + 6763007712.

Almost surely, 2^{12011100120312} is an apocalyptic number.

12011100120312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12011100120312 is an abundant number, since it is smaller than the sum of its proper divisors (18828211001688).

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

12011100120312 is a wasteful number, since it uses less digits than its factorization.

12011100120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13526013695 (or 13526013691 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12011100120312 its reverse (21302100111021), we get a palindrome (33313200231333).

The spelling of 12011100120312 in words is "twelve trillion, eleven billion, one hundred million, one hundred twenty thousand, three hundred twelve".