3121321341 has 4 divisors (see below), whose sum is σ = 4161761792. Its totient is φ = 2080880892.

The previous prime is 3121321339. The next prime is 3121321351. The reversal of 3121321341 is 1431231213.

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 not a de Polignac number, because 3121321341 - 2¹ = 3121321339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121321351) 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, 520220221 + ... + 520220226.

It is an arithmetic number, because the mean of its divisors is an integer number (1040440448).

Almost surely, 2^3121321341 is an apocalyptic number.

It is an amenable number.

3121321341 is a deficient number, since it is larger than the sum of its proper divisors (1040440451).

3121321341 is a wasteful number, since it uses less digits than its factorization.

3121321341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040440450.

The product of its digits is 432, while the sum is 21.

The square root of 3121321341 is about 55868.7868223394. The cubic root of 3121321341 is about 1461.4349657644.

Adding to 3121321341 its reverse (1431231213), we get a palindrome (4552552554).

The spelling of 3121321341 in words is "three billion, one hundred twenty-one million, three hundred twenty-one thousand, three hundred forty-one".