3156342321 has 32 divisors (see below), whose sum is σ = 4645555200. Its totient is φ = 1890319680.

The previous prime is 3156342311. The next prime is 3156342341. The reversal of 3156342321 is 1232436513.

3156342321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3156342321 - 2⁶ = 3156342257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3156342311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1678860 + ... + 1680738.

It is an arithmetic number, because the mean of its divisors is an integer number (145173600).

Almost surely, 2^3156342321 is an apocalyptic number.

It is an amenable number.

3156342321 is a deficient number, since it is larger than the sum of its proper divisors (1489212879).

3156342321 is a wasteful number, since it uses less digits than its factorization.

3156342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469.

The product of its digits is 12960, while the sum is 30.

The square root of 3156342321 is about 56181.3342757183. The cubic root of 3156342321 is about 1466.8803790220.

Adding to 3156342321 its reverse (1232436513), we get a palindrome (4388778834).

The spelling of 3156342321 in words is "three billion, one hundred fifty-six million, three hundred forty-two thousand, three hundred twenty-one".