3131356743 has 6 divisors (see below), whose sum is σ = 4523070864. Its totient is φ = 2087571156.

The previous prime is 3131356741. The next prime is 3131356777. The reversal of 3131356743 is 3476531313.

It is not a de Polignac number, because 3131356743 - 2¹ = 3131356741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3131356698 and 3131356707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131356741) 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 5 ways as a sum of consecutive naturals, for example, 173964255 + ... + 173964272.

It is an arithmetic number, because the mean of its divisors is an integer number (753845144).

Almost surely, 2^3131356743 is an apocalyptic number.

3131356743 is a deficient number, since it is larger than the sum of its proper divisors (1391714121).

3131356743 is a wasteful number, since it uses less digits than its factorization.

3131356743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347928533 (or 347928530 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 3131356743 is about 55958.5269909779. The cubic root of 3131356743 is about 1462.9995165941. Note that the first 3 decimals are identical.

The spelling of 3131356743 in words is "three billion, one hundred thirty-one million, three hundred fifty-six thousand, seven hundred forty-three".