3131421042343 has 8 divisors (see below), whose sum is σ = 3416111226000. Its totient is φ = 2846733449280.

The previous prime is 3131421042331. The next prime is 3131421042349. The reversal of 3131421042343 is 3432401241313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3131421042343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131421042349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2578533 + ... + 3593281.

It is an arithmetic number, because the mean of its divisors is an integer number (427013903250).

Almost surely, 2^{3131421042343} is an apocalyptic number.

3131421042343 is a deficient number, since it is larger than the sum of its proper divisors (284690183657).

3131421042343 is a wasteful number, since it uses less digits than its factorization.

3131421042343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295297.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 3131421042343 its reverse (3432401241313), we get a palindrome (6563822283656).

The spelling of 3131421042343 in words is "three trillion, one hundred thirty-one billion, four hundred twenty-one million, forty-two thousand, three hundred forty-three".