3121002112 has 32 divisors (see below), whose sum is σ = 6487958880. Its totient is φ = 1492651776.

The previous prime is 3121002077. The next prime is 3121002113. The reversal of 3121002112 is 2112001213.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 3121002092 and 3121002101.

It is not an unprimeable number, because it can be changed into a prime (3121002113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527118 + ... + 533005.

It is an arithmetic number, because the mean of its divisors is an integer number (202748715).

Almost surely, 2^3121002112 is an apocalyptic number.

3121002112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3121002112 is an abundant number, since it is smaller than the sum of its proper divisors (3366956768).

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

3121002112 is a wasteful number, since it uses less digits than its factorization.

3121002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060160 (or 1060148 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 3121002112 is about 55865.9297962542. The cubic root of 3121002112 is about 1461.3851419582.

Adding to 3121002112 its reverse (2112001213), we get a palindrome (5233003325).

The spelling of 3121002112 in words is "three billion, one hundred twenty-one million, two thousand, one hundred twelve".