971827111253 has 2 divisors, whose sum is σ = 971827111254. Its totient is φ = 971827111252.

The previous prime is 971827111187. The next prime is 971827111267. The reversal of 971827111253 is 352111728179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 929309496049 + 42517615204 = 964007^2 + 206198^2 .

It is a cyclic number.

It is not a de Polignac number, because 971827111253 - 2³⁸ = 696949204309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 971827111198 and 971827111207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (971827111273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485913555626 + 485913555627.

It is an arithmetic number, because the mean of its divisors is an integer number (485913555627).

Almost surely, 2^971827111253 is an apocalyptic number.

It is an amenable number.

971827111253 is a deficient number, since it is larger than the sum of its proper divisors (1).

971827111253 is an equidigital number, since it uses as much as digits as its factorization.

971827111253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 47.

The spelling of 971827111253 in words is "nine hundred seventy-one billion, eight hundred twenty-seven million, one hundred eleven thousand, two hundred fifty-three".