3142331321 has 4 divisors (see below), whose sum is σ = 3307717200. Its totient is φ = 2976945444.

The previous prime is 3142331317. The next prime is 3142331329. The reversal of 3142331321 is 1231332413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1231332413 = 8629 ⋅142697.

It is a cyclic number.

It is not a de Polignac number, because 3142331321 - 2² = 3142331317 is a prime.

It is a super-2 number, since 2×3142331321² = 19748492261875210082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3142331329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82692911 + ... + 82692948.

It is an arithmetic number, because the mean of its divisors is an integer number (826929300).

Almost surely, 2^3142331321 is an apocalyptic number.

It is an amenable number.

3142331321 is a deficient number, since it is larger than the sum of its proper divisors (165385879).

3142331321 is a wasteful number, since it uses less digits than its factorization.

3142331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165385878.

The product of its digits is 1296, while the sum is 23.

The square root of 3142331321 is about 56056.5011483949. The cubic root of 3142331321 is about 1464.7066660234.

Adding to 3142331321 its reverse (1231332413), we get a palindrome (4373663734).

The spelling of 3142331321 in words is "three billion, one hundred forty-two million, three hundred thirty-one thousand, three hundred twenty-one".