3123320280 has 32 divisors (see below), whose sum is σ = 9369961200. Its totient is φ = 832885376.

The previous prime is 3123320279. The next prime is 3123320287. The reversal of 3123320280 is 820233213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3123320280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123320287) 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, 13013715 + ... + 13013954.

Almost surely, 2^3123320280 is an apocalyptic number.

3123320280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3123320280 is an abundant number, since it is smaller than the sum of its proper divisors (6246640920).

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

3123320280 is a wasteful number, since it uses less digits than its factorization.

3123320280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26027683 (or 26027679 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3123320280 is about 55886.6735456674. The cubic root of 3123320280 is about 1461.7468738351.

Adding to 3123320280 its reverse (820233213), we get a palindrome (3943553493).

The spelling of 3123320280 in words is "three billion, one hundred twenty-three million, three hundred twenty thousand, two hundred eighty".