3031220100 has 72 divisors (see below), whose sum is σ = 9231943840. Its totient is φ = 765780480.

The previous prime is 3031220069. The next prime is 3031220177. The reversal of 3031220100 is 10221303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

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, 260197 + ... + 271596.

Almost surely, 2^3031220100 is an apocalyptic number.

3031220100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3031220100 is an abundant number, since it is smaller than the sum of its proper divisors (6200723740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3031220100 is a wasteful number, since it uses less digits than its factorization.

3031220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531829 (or 531822 counting only the distinct ones).

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

The square root of 3031220100 is about 55056.5173253812. The cubic root of 3031220100 is about 1447.2353345143.

Adding to 3031220100 its reverse (10221303), we get a palindrome (3041441403).

The spelling of 3031220100 in words is "three billion, thirty-one million, two hundred twenty thousand, one hundred".