3012311213021 has 16 divisors (see below), whose sum is σ = 3400252421760. Its totient is φ = 2643429069120.

The previous prime is 3012311212993. The next prime is 3012311213059. The reversal of 3012311213021 is 1203121132103.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3012311213021 - 2¹⁰ = 3012311211997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3012311212984 and 3012311213002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012311213221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315296 + ... + 2474678.

It is an arithmetic number, because the mean of its divisors is an integer number (212515776360).

Almost surely, 2^{3012311213021} is an apocalyptic number.

It is an amenable number.

3012311213021 is a deficient number, since it is larger than the sum of its proper divisors (387941208739).

3012311213021 is a wasteful number, since it uses less digits than its factorization.

3012311213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163796.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3012311213021 its reverse (1203121132103), we get a palindrome (4215432345124).

The spelling of 3012311213021 in words is "three trillion, twelve billion, three hundred eleven million, two hundred thirteen thousand, twenty-one".