3131042347 has 2 divisors, whose sum is σ = 3131042348. Its totient is φ = 3131042346.

The previous prime is 3131042329. The next prime is 3131042351. The reversal of 3131042347 is 7432401313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3131042347 - 2³¹ = 983558699 is a prime.

It is not a weakly prime, because it can be changed into another prime (3131042147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565521173 + 1565521174.

It is an arithmetic number, because the mean of its divisors is an integer number (1565521174).

Almost surely, 2^3131042347 is an apocalyptic number.

3131042347 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131042347 is an equidigital number, since it uses as much as digits as its factorization.

3131042347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 3131042347 is about 55955.7177328644. The cubic root of 3131042347 is about 1462.9505520261.

The spelling of 3131042347 in words is "three billion, one hundred thirty-one million, forty-two thousand, three hundred forty-seven".