81301033003101 has 16 divisors (see below), whose sum is σ = 108481460068800. Its totient is φ = 54160655412608.

The previous prime is 81301033003093. The next prime is 81301033003237. The reversal of 81301033003101 is 10130033010318.

It is a cyclic number.

It is not a de Polignac number, because 81301033003101 - 2³ = 81301033003093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81301033003501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39289795 + ... + 41307263.

It is an arithmetic number, because the mean of its divisors is an integer number (6780091254300).

Almost surely, 2^{81301033003101} is an apocalyptic number.

It is an amenable number.

81301033003101 is a deficient number, since it is larger than the sum of its proper divisors (27180427065699).

81301033003101 is a wasteful number, since it uses less digits than its factorization.

81301033003101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027388.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 81301033003101 its reverse (10130033010318), we get a palindrome (91431066013419).

The spelling of 81301033003101 in words is "eighty-one trillion, three hundred one billion, thirty-three million, three thousand, one hundred one".