3120100320 has 48 divisors (see below), whose sum is σ = 9828317520. Its totient is φ = 832026624.

The previous prime is 3120100309. The next prime is 3120100327. The reversal of 3120100320 is 230010213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a junction number, because it is equal to n+sod(n) for n = 3120100296 and 3120100305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120100327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3249625 + ... + 3250584.

It is an arithmetic number, because the mean of its divisors is an integer number (204756615).

Almost surely, 2^3120100320 is an apocalyptic number.

3120100320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3120100320 is an abundant number, since it is smaller than the sum of its proper divisors (6708217200).

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

3120100320 is a wasteful number, since it uses less digits than its factorization.

3120100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500227 (or 6500219 counting only the distinct ones).

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

The square root of 3120100320 is about 55857.8581759093. The cubic root of 3120100320 is about 1461.2443760191.

Adding to 3120100320 its reverse (230010213), we get a palindrome (3350110533).

The spelling of 3120100320 in words is "three billion, one hundred twenty million, one hundred thousand, three hundred twenty".