163234200041281 has 2 divisors, whose sum is σ = 163234200041282. Its totient is φ = 163234200041280.

The previous prime is 163234200041279. The next prime is 163234200041317. The reversal of 163234200041281 is 182140002432361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93049348071681 + 70184851969600 = 9646209^2 + 8377640^2 .

It is a cyclic number.

It is not a de Polignac number, because 163234200041281 - 2¹ = 163234200041279 is a prime.

It is a super-2 number, since 2×163234200041281² (a number of 29 digits) contains 22 as substring.

Together with 163234200041279, 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 163234200041281.

It is not a weakly prime, because it can be changed into another prime (163234200041251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81617100020640 + 81617100020641.

It is an arithmetic number, because the mean of its divisors is an integer number (81617100020641).

Almost surely, 2^{163234200041281} is an apocalyptic number.

It is an amenable number.

163234200041281 is a deficient number, since it is larger than the sum of its proper divisors (1).

163234200041281 is an equidigital number, since it uses as much as digits as its factorization.

163234200041281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 163234200041281 in words is "one hundred sixty-three trillion, two hundred thirty-four billion, two hundred million, forty-one thousand, two hundred eighty-one".