3112011021 has 24 divisors (see below), whose sum is σ = 5036658624. Its totient is φ = 1700973120.

The previous prime is 3112010999. The next prime is 3112011037. The reversal of 3112011021 is 1201102113.

It is not a de Polignac number, because 3112011021 - 2⁹ = 3112010509 is a prime.

It is a super-2 number, since 2×3112011021² = 19369225189650924882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3112010988 and 3112011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112016021) 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 23 ways as a sum of consecutive naturals, for example, 456840 + ... + 463601.

It is an arithmetic number, because the mean of its divisors is an integer number (209860776).

Almost surely, 2^3112011021 is an apocalyptic number.

It is an amenable number.

3112011021 is a deficient number, since it is larger than the sum of its proper divisors (1924647603).

3112011021 is a wasteful number, since it uses less digits than its factorization.

3112011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920481 (or 920474 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 3112011021 is about 55785.4015043362. The cubic root of 3112011021 is about 1459.9804558902.

Adding to 3112011021 its reverse (1201102113), we get a palindrome (4313113134).

The spelling of 3112011021 in words is "three billion, one hundred twelve million, eleven thousand, twenty-one".