3112020321 has 8 divisors (see below), whose sum is σ = 4149649440. Its totient is φ = 2074535712.

The previous prime is 3112020311. The next prime is 3112020337. The reversal of 3112020321 is 1230202113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3112020321 - 2¹⁰ = 3112019297 is a prime.

It is a super-3 number, since 3×3112020321³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3112020321.

It is not an unprimeable number, because it can be changed into a prime (3112020311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33045 + ... + 85533.

It is an arithmetic number, because the mean of its divisors is an integer number (518706180).

Almost surely, 2^3112020321 is an apocalyptic number.

It is an amenable number.

3112020321 is a deficient number, since it is larger than the sum of its proper divisors (1037629119).

3112020321 is a wasteful number, since it uses less digits than its factorization.

3112020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72255.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3112020321 is about 55785.4848594148. The cubic root of 3112020321 is about 1459.9819102344.

Adding to 3112020321 its reverse (1230202113), we get a palindrome (4342222434).

The spelling of 3112020321 in words is "three billion, one hundred twelve million, twenty thousand, three hundred twenty-one".