3971350096531 has 2 divisors, whose sum is σ = 3971350096532. Its totient is φ = 3971350096530.

The previous prime is 3971350096529. The next prime is 3971350096537. The reversal of 3971350096531 is 1356900531793.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3971350096531 - 2¹ = 3971350096529 is a prime.

It is a super-2 number, since 2×3971350096531² (a number of 26 digits) contains 22 as substring.

Together with 3971350096529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3971350096537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985675048265 + 1985675048266.

It is an arithmetic number, because the mean of its divisors is an integer number (1985675048266).

Almost surely, 2^{3971350096531} is an apocalyptic number.

3971350096531 is a deficient number, since it is larger than the sum of its proper divisors (1).

3971350096531 is an equidigital number, since it uses as much as digits as its factorization.

3971350096531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2296350, while the sum is 52.

The spelling of 3971350096531 in words is "three trillion, nine hundred seventy-one billion, three hundred fifty million, ninety-six thousand, five hundred thirty-one".