3012123121 has 32 divisors (see below), whose sum is σ = 3752566272. Its totient is φ = 2358512640.

The previous prime is 3012123119. The next prime is 3012123131. The reversal of 3012123121 is 1213212103.

It is a cyclic number.

It is not a de Polignac number, because 3012123121 - 2¹ = 3012123119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3012123095 and 3012123104.

It is not an unprimeable number, because it can be changed into a prime (3012123131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3200511 + ... + 3201451.

It is an arithmetic number, because the mean of its divisors is an integer number (117267696).

Almost surely, 2^3012123121 is an apocalyptic number.

It is an amenable number.

3012123121 is a deficient number, since it is larger than the sum of its proper divisors (740443151).

3012123121 is a wasteful number, since it uses less digits than its factorization.

3012123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3012123121 is about 54882.8126192527. The cubic root of 3012123121 is about 1444.1896888452.

Adding to 3012123121 its reverse (1213212103), we get a palindrome (4225335224).

The spelling of 3012123121 in words is "three billion, twelve million, one hundred twenty-three thousand, one hundred twenty-one".