3121450343 has 8 divisors (see below), whose sum is σ = 3406014480. Its totient is φ = 2837018880.

The previous prime is 3121450327. The next prime is 3121450379. The reversal of 3121450343 is 3430541213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3121450343 - 2⁴ = 3121450327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121450043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19703 + ... + 81431.

It is an arithmetic number, because the mean of its divisors is an integer number (425751810).

Almost surely, 2^3121450343 is an apocalyptic number.

3121450343 is a deficient number, since it is larger than the sum of its proper divisors (284564137).

3121450343 is a wasteful number, since it uses less digits than its factorization.

3121450343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66337.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 3121450343 is about 55869.9413191029. The cubic root of 3121450343 is about 1461.4550988443.

Adding to 3121450343 its reverse (3430541213), we get a palindrome (6551991556).

The spelling of 3121450343 in words is "three billion, one hundred twenty-one million, four hundred fifty thousand, three hundred forty-three".