3031002021 has 16 divisors (see below), whose sum is σ = 4087866240. Its totient is φ = 1997467200.

The previous prime is 3031001989. The next prime is 3031002043. The reversal of 3031002021 is 1202001303.

It is a happy number.

It is not a de Polignac number, because 3031002021 - 2⁵ = 3031001989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3031001988 and 3031002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031002061) 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 15 ways as a sum of consecutive naturals, for example, 190200 + ... + 205518.

It is an arithmetic number, because the mean of its divisors is an integer number (255491640).

Almost surely, 2^3031002021 is an apocalyptic number.

It is an amenable number.

3031002021 is a deficient number, since it is larger than the sum of its proper divisors (1056864219).

3031002021 is a wasteful number, since it uses less digits than its factorization.

3031002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16076.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3031002021 is about 55054.5367885336. The cubic root of 3031002021 is about 1447.2006269056.

Adding to 3031002021 its reverse (1202001303), we get a palindrome (4233003324).

The spelling of 3031002021 in words is "three billion, thirty-one million, two thousand, twenty-one".