81241170301 has 4 divisors (see below), whose sum is σ = 81241897500. Its totient is φ = 81240443104.

The previous prime is 81241170293. The next prime is 81241170317. The reversal of 81241170301 is 10307114218.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10307114218 = 2 ⋅5153557109.

It can be written as a sum of positive squares in 2 ways, for example, as 35946264025 + 45294906276 = 189595^2 + 212826^2 .

It is a cyclic number.

It is not a de Polignac number, because 81241170301 - 2³ = 81241170293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 81241170301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81241170391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156826 + ... + 432523.

It is an arithmetic number, because the mean of its divisors is an integer number (20310474375).

Almost surely, 2^81241170301 is an apocalyptic number.

It is an amenable number.

81241170301 is a deficient number, since it is larger than the sum of its proper divisors (727199).

81241170301 is a wasteful number, since it uses less digits than its factorization.

81241170301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727198.

The product of its (nonzero) digits is 1344, while the sum is 28.

Adding to 81241170301 its reverse (10307114218), we get a palindrome (91548284519).

The spelling of 81241170301 in words is "eighty-one billion, two hundred forty-one million, one hundred seventy thousand, three hundred one".