12114771312 has 80 divisors (see below), whose sum is σ = 35822350080. Its totient is φ = 3456047616.

The previous prime is 12114771311. The next prime is 12114771337. The reversal of 12114771312 is 21317741121.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12114771312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12114771311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194068 + ... + 248780.

It is an arithmetic number, because the mean of its divisors is an integer number (447779376).

Almost surely, 2^12114771312 is an apocalyptic number.

12114771312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12114771312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17911175040).

12114771312 is an abundant number, since it is smaller than the sum of its proper divisors (23707578768).

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

12114771312 is a wasteful number, since it uses less digits than its factorization.

12114771312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55390 (or 55384 counting only the distinct ones).

The product of its digits is 2352, while the sum is 30.

The spelling of 12114771312 in words is "twelve billion, one hundred fourteen million, seven hundred seventy-one thousand, three hundred twelve".