3121120012 has 12 divisors (see below), whose sum is σ = 5650303680. Its totient is φ = 1506747536.

The previous prime is 3121119997. The next prime is 3121120031. The reversal of 3121120012 is 2100211213.

It is a junction number, because it is equal to n+sod(n) for n = 3121119974 and 3121120001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13452988 + ... + 13453219.

It is an arithmetic number, because the mean of its divisors is an integer number (470858640).

Almost surely, 2^3121120012 is an apocalyptic number.

It is an amenable number.

3121120012 is a deficient number, since it is larger than the sum of its proper divisors (2529183668).

3121120012 is a wasteful number, since it uses less digits than its factorization.

3121120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26906240 (or 26906238 counting only the distinct ones).

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

The square root of 3121120012 is about 55866.9849911377. The cubic root of 3121120012 is about 1461.4035436481.

Adding to 3121120012 its reverse (2100211213), we get a palindrome (5221331225).

The spelling of 3121120012 in words is "three billion, one hundred twenty-one million, one hundred twenty thousand, twelve".