3120434321 has 6 divisors (see below), whose sum is σ = 3172431366. Its totient is φ = 3069276000.

The previous prime is 3120434299. The next prime is 3120434329. The reversal of 3120434321 is 1234340213.

It can be written as a sum of positive squares in 3 ways, for example, as 178890625 + 2941543696 = 13375^2 + 54236^2 .

It is not a de Polignac number, because 3120434321 - 2³⁰ = 2046692497 is a prime.

It is a super-2 number, since 2×3120434321² = 19474220703349462082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120434329) 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 5 ways as a sum of consecutive naturals, for example, 415580 + ... + 423021.

It is an arithmetic number, because the mean of its divisors is an integer number (528738561).

Almost surely, 2^3120434321 is an apocalyptic number.

It is an amenable number.

3120434321 is a deficient number, since it is larger than the sum of its proper divisors (51997045).

3120434321 is an frugal number, since it uses more digits than its factorization.

3120434321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838723 (or 838662 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3120434321 is about 55860.8478363872. The cubic root of 3120434321 is about 1461.2965153329.

Adding to 3120434321 its reverse (1234340213), we get a palindrome (4354774534).

The spelling of 3120434321 in words is "three billion, one hundred twenty million, four hundred thirty-four thousand, three hundred twenty-one".