3171312901 has 2 divisors, whose sum is σ = 3171312902. Its totient is φ = 3171312900.

The previous prime is 3171312899. The next prime is 3171312917. The reversal of 3171312901 is 1092131713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3128724225 + 42588676 = 55935^2 + 6526^2 .

It is a cyclic number.

It is not a de Polignac number, because 3171312901 - 2¹ = 3171312899 is a prime.

Together with 3171312899, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3171312901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3171312931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585656450 + 1585656451.

It is an arithmetic number, because the mean of its divisors is an integer number (1585656451).

Almost surely, 2^3171312901 is an apocalyptic number.

It is an amenable number.

3171312901 is a deficient number, since it is larger than the sum of its proper divisors (1).

3171312901 is an equidigital number, since it uses as much as digits as its factorization.

3171312901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 3171312901 is about 56314.4111307221. The cubic root of 3171312901 is about 1469.1958674449.

The spelling of 3171312901 in words is "three billion, one hundred seventy-one million, three hundred twelve thousand, nine hundred one".