2312111210112 has 192 divisors, whose sum is σ = 7259607819360. Its totient is φ = 700502906880.

The previous prime is 2312111210077. The next prime is 2312111210161. The reversal of 2312111210112 is 2110121112132.

It is a happy number.

2312111210112 is a `hidden beast` number, since 231 + 2 + 111 + 210 + 112 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×2312111210112² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78513663 + ... + 78543105.

Almost surely, 2^{2312111210112} is an apocalyptic number.

2312111210112 is a gapful number since it is divisible by the number (22) 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 2312111210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3629803909680).

2312111210112 is an abundant number, since it is smaller than the sum of its proper divisors (4947496609248).

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

2312111210112 is a wasteful number, since it uses less digits than its factorization.

2312111210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35671 (or 35656 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 2312111210112 its reverse (2110121112132), we get a palindrome (4422232322244).

The spelling of 2312111210112 in words is "two trillion, three hundred twelve billion, one hundred eleven million, two hundred ten thousand, one hundred twelve".