3115344321 has 16 divisors (see below), whose sum is σ = 4672307520. Its totient is φ = 2076894756.

The previous prime is 3115344301. The next prime is 3115344361. The reversal of 3115344321 is 1234435113.

It is a happy number.

3115344321 is a `hidden beast` number, since 311 + 5 + 344 + 3 + 2 + 1 = 666.

It is not a de Polignac number, because 3115344321 - 2⁵ = 3115344289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3115344301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710055 + ... + 714428.

It is an arithmetic number, because the mean of its divisors is an integer number (292019220).

Almost surely, 2^3115344321 is an apocalyptic number.

It is an amenable number.

3115344321 is a deficient number, since it is larger than the sum of its proper divisors (1556963199).

3115344321 is an frugal number, since it uses more digits than its factorization.

3115344321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424504 (or 1424486 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 3115344321 is about 55815.2696042938. The cubic root of 3115344321 is about 1460.5015354879.

Adding to 3115344321 its reverse (1234435113), we get a palindrome (4349779434).

The spelling of 3115344321 in words is "three billion, one hundred fifteen million, three hundred forty-four thousand, three hundred twenty-one".