3123311112 has 24 divisors (see below), whose sum is σ = 8458967790. Its totient is φ = 1041103680.

The previous prime is 3123311099. The next prime is 3123311131. The reversal of 3123311112 is 2111133213.

3123311112 is a `hidden beast` number, since 312 + 331 + 11 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2297668356 + 825642756 = 47934^2 + 28734^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21689589 + ... + 21689732.

Almost surely, 2^3123311112 is an apocalyptic number.

It is an amenable number.

3123311112 is an abundant number, since it is smaller than the sum of its proper divisors (5335656678).

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

3123311112 is a wasteful number, since it uses less digits than its factorization.

3123311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43379333 (or 43379326 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 3123311112 is about 55886.5915224752. The cubic root of 3123311112 is about 1461.7454435934.

Adding to 3123311112 its reverse (2111133213), we get a palindrome (5234444325).

The spelling of 3123311112 in words is "three billion, one hundred twenty-three million, three hundred eleven thousand, one hundred twelve".