171953002231 has 2 divisors, whose sum is σ = 171953002232. Its totient is φ = 171953002230.

The previous prime is 171953002229. The next prime is 171953002253. The reversal of 171953002231 is 132200359171.

It is a weak prime.

It is an emirp because it is prime and its reverse (132200359171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 171953002231 - 2¹ = 171953002229 is a prime.

It is a super-2 number, since 2×171953002231² (a number of 23 digits) contains 22 as substring.

Together with 171953002229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171953006231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85976501115 + 85976501116.

It is an arithmetic number, because the mean of its divisors is an integer number (85976501116).

Almost surely, 2^171953002231 is an apocalyptic number.

171953002231 is a deficient number, since it is larger than the sum of its proper divisors (1).

171953002231 is an equidigital number, since it uses as much as digits as its factorization.

171953002231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The spelling of 171953002231 in words is "one hundred seventy-one billion, nine hundred fifty-three million, two thousand, two hundred thirty-one".