12923930623 has 4 divisors (see below), whose sum is σ = 12927341728. Its totient is φ = 12920519520.

The previous prime is 12923930563. The next prime is 12923930633. The reversal of 12923930623 is 32603932921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12923930623 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 (12923930633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1699863 + ... + 1707448.

It is an arithmetic number, because the mean of its divisors is an integer number (3231835432).

Almost surely, 2^12923930623 is an apocalyptic number.

12923930623 is a deficient number, since it is larger than the sum of its proper divisors (3411105).

12923930623 is an equidigital number, since it uses as much as digits as its factorization.

12923930623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411104.

The product of its (nonzero) digits is 104976, while the sum is 40.

The spelling of 12923930623 in words is "twelve billion, nine hundred twenty-three million, nine hundred thirty thousand, six hundred twenty-three".