81030008103 has 32 divisors (see below), whose sum is σ = 122705601792. Its totient is φ = 47127225600.

The previous prime is 81030008093. The next prime is 81030008107. The reversal of 81030008103 is 30180003018.

It is not a de Polignac number, because 81030008103 - 2⁶ = 81030008039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81030008107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365413 + ... + 543678.

It is an arithmetic number, because the mean of its divisors is an integer number (3834550056).

Almost surely, 2^81030008103 is an apocalyptic number.

81030008103 is a deficient number, since it is larger than the sum of its proper divisors (41675593689).

81030008103 is a wasteful number, since it uses less digits than its factorization.

81030008103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909215.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 81030008103 in words is "eighty-one billion, thirty million, eight thousand, one hundred three".