8371712131 has 2 divisors, whose sum is σ = 8371712132. Its totient is φ = 8371712130.

The previous prime is 8371712119. The next prime is 8371712137. The reversal of 8371712131 is 1312171738.

It is a happy number.

8371712131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8371712131 - 2¹⁹ = 8371187843 is a prime.

It is a super-2 number, since 2×8371712131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8371712137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4185856065 + 4185856066.

It is an arithmetic number, because the mean of its divisors is an integer number (4185856066).

Almost surely, 2^8371712131 is an apocalyptic number.

8371712131 is a deficient number, since it is larger than the sum of its proper divisors (1).

8371712131 is an equidigital number, since it uses as much as digits as its factorization.

8371712131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 34.

The square root of 8371712131 is about 91497.0607779288. The cubic root of 8371712131 is about 2030.5082674176.

Adding to 8371712131 its reverse (1312171738), we get a palindrome (9683883869).

The spelling of 8371712131 in words is "eight billion, three hundred seventy-one million, seven hundred twelve thousand, one hundred thirty-one".