20623104403 has 4 divisors (see below), whose sum is σ = 22497932088. Its totient is φ = 18748276720.

The previous prime is 20623104401. The next prime is 20623104407. The reversal of 20623104403 is 30440132602.

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 20623104403 - 2¹ = 20623104401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20623104401) 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, 937413826 + ... + 937413847.

It is an arithmetic number, because the mean of its divisors is an integer number (5624483022).

Almost surely, 2^20623104403 is an apocalyptic number.

20623104403 is a deficient number, since it is larger than the sum of its proper divisors (1874827685).

20623104403 is a wasteful number, since it uses less digits than its factorization.

20623104403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874827684.

The product of its (nonzero) digits is 3456, while the sum is 25.

The spelling of 20623104403 in words is "twenty billion, six hundred twenty-three million, one hundred four thousand, four hundred three".