81067000103 has 4 divisors (see below), whose sum is σ = 81113405400. Its totient is φ = 81020594808.

The previous prime is 81066999973. The next prime is 81067000193. The reversal of 81067000103 is 30100076018.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 81067000103 - 2⁸ = 81066999847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81067000193) 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, 23200028 + ... + 23203521.

It is an arithmetic number, because the mean of its divisors is an integer number (20278351350).

Almost surely, 2^81067000103 is an apocalyptic number.

81067000103 is a deficient number, since it is larger than the sum of its proper divisors (46405297).

81067000103 is a wasteful number, since it uses less digits than its factorization.

81067000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46405296.

The product of its (nonzero) digits is 1008, while the sum is 26.

The spelling of 81067000103 in words is "eighty-one billion, sixty-seven million, one hundred three", and thus it is an aban number.