3121130347 has 2 divisors, whose sum is σ = 3121130348. Its totient is φ = 3121130346.

The previous prime is 3121130321. The next prime is 3121130459. The reversal of 3121130347 is 7430311213.

3121130347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121130347 - 2³¹ = 973646699 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121131347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560565173 + 1560565174.

It is an arithmetic number, because the mean of its divisors is an integer number (1560565174).

Almost surely, 2^3121130347 is an apocalyptic number.

3121130347 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121130347 is an equidigital number, since it uses as much as digits as its factorization.

3121130347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3121130347 is about 55867.0774875508. The cubic root of 3121130347 is about 1461.4051567003.

The spelling of 3121130347 in words is "three billion, one hundred twenty-one million, one hundred thirty thousand, three hundred forty-seven".