3111112131112 has 8 divisors (see below), whose sum is σ = 5833335245850. Its totient is φ = 1555556065552.

The previous prime is 3111112131109. The next prime is 3111112131119. The reversal of 3111112131112 is 2111312111113.

It can be written as a sum of positive squares in only one way, i.e., 3110447213316 + 664917796 = 1763646^2 + 25786^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 3111112131112.

It is not an unprimeable number, because it can be changed into a prime (3111112131119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194444508187 + ... + 194444508202.

Almost surely, 2^{3111112131112} is an apocalyptic number.

It is an amenable number.

3111112131112 is a deficient number, since it is larger than the sum of its proper divisors (2722223114738).

3111112131112 is a wasteful number, since it uses less digits than its factorization.

3111112131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388889016395 (or 388889016391 counting only the distinct ones).

The product of its digits is 36, while the sum is 19.

Adding to 3111112131112 its reverse (2111312111113), we get a palindrome (5222424242225).

The spelling of 3111112131112 in words is "three trillion, one hundred eleven billion, one hundred twelve million, one hundred thirty-one thousand, one hundred twelve".