3112271321 has 4 divisors (see below), whose sum is σ = 3112422144. Its totient is φ = 3112120500.

The previous prime is 3112271293. The next prime is 3112271341. The reversal of 3112271321 is 1231722113.

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.

It is a cyclic number.

It is not a de Polignac number, because 3112271321 - 2²² = 3108077017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112271341) 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, 38405 + ... + 87746.

It is an arithmetic number, because the mean of its divisors is an integer number (778105536).

Almost surely, 2^3112271321 is an apocalyptic number.

It is an amenable number.

3112271321 is a deficient number, since it is larger than the sum of its proper divisors (150823).

3112271321 is a wasteful number, since it uses less digits than its factorization.

3112271321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150822.

The product of its digits is 504, while the sum is 23.

The square root of 3112271321 is about 55787.7345032042. The cubic root of 3112271321 is about 1460.0211607929.

Adding to 3112271321 its reverse (1231722113), we get a palindrome (4343993434).

The spelling of 3112271321 in words is "three billion, one hundred twelve million, two hundred seventy-one thousand, three hundred twenty-one".