12923693105 has 4 divisors (see below), whose sum is σ = 15508431732. Its totient is φ = 10338954480.

The previous prime is 12923693033. The next prime is 12923693119. The reversal of 12923693105 is 50139632921.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1481326144 + 11442366961 = 38488^2 + 106969^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12923693105 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292369306 + ... + 1292369315.

It is an arithmetic number, because the mean of its divisors is an integer number (3877107933).

Almost surely, 2^12923693105 is an apocalyptic number.

It is an amenable number.

12923693105 is a deficient number, since it is larger than the sum of its proper divisors (2584738627).

12923693105 is an equidigital number, since it uses as much as digits as its factorization.

12923693105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584738626.

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 12923693105 in words is "twelve billion, nine hundred twenty-three million, six hundred ninety-three thousand, one hundred five".