3012132121 has 4 divisors (see below), whose sum is σ = 3013167652. Its totient is φ = 3011096592.

The previous prime is 3012132119. The next prime is 3012132139. The reversal of 3012132121 is 1212312103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1212312103 = 11551 ⋅104953.

It can be written as a sum of positive squares in 2 ways, for example, as 1971360000 + 1040772121 = 44400^2 + 32261^2 .

It is a cyclic number.

It is not a de Polignac number, because 3012132121 - 2¹ = 3012132119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3012132095 and 3012132104.

It is not an unprimeable number, because it can be changed into a prime (3012132161) 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 3 ways as a sum of consecutive naturals, for example, 513390 + ... + 519223.

It is an arithmetic number, because the mean of its divisors is an integer number (753291913).

Almost surely, 2^3012132121 is an apocalyptic number.

It is an amenable number.

3012132121 is a deficient number, since it is larger than the sum of its proper divisors (1035531).

3012132121 is a wasteful number, since it uses less digits than its factorization.

3012132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035530.

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

The square root of 3012132121 is about 54882.8946120738. The cubic root of 3012132121 is about 1444.1911272209.

Adding to 3012132121 its reverse (1212312103), we get a palindrome (4224444224).

The spelling of 3012132121 in words is "three billion, twelve million, one hundred thirty-two thousand, one hundred twenty-one".