81102230373 has 8 divisors (see below), whose sum is σ = 108137844736. Its totient is φ = 54067384800.

The previous prime is 81102230347. The next prime is 81102230387. The reversal of 81102230373 is 37303220118.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 81102230373 - 2²⁴ = 81085453157 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 81102230373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81102230393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132153 + ... + 423873.

It is an arithmetic number, because the mean of its divisors is an integer number (13517230592).

Almost surely, 2^81102230373 is an apocalyptic number.

It is an amenable number.

81102230373 is a deficient number, since it is larger than the sum of its proper divisors (27035614363).

81102230373 is a wasteful number, since it uses less digits than its factorization.

81102230373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384395.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 81102230373 in words is "eighty-one billion, one hundred two million, two hundred thirty thousand, three hundred seventy-three".