3081221803 has 24 divisors (see below), whose sum is σ = 3493597184. Its totient is φ = 2713843440.

The previous prime is 3081221789. The next prime is 3081221827.

3081221803 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3081221803 - 2¹⁷ = 3081090731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3081221903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 658450 + ... + 663112.

Almost surely, 2^3081221803 is an apocalyptic number.

3081221803 is a deficient number, since it is larger than the sum of its proper divisors (412375381).

3081221803 is a wasteful number, since it uses less digits than its factorization.

3081221803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4855 (or 4844 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 3081221803 is about 55508.7542915530. The cubic root of 3081221803 is about 1455.1496329778.

The spelling of 3081221803 in words is "three billion, eighty-one million, two hundred twenty-one thousand, eight hundred three".