23430404205 has 144 divisors (see below), whose sum is σ = 45357062400. Its totient is φ = 11178984960.

The previous prime is 23430404189. The next prime is 23430404209. The reversal of 23430404205 is 50240403432.

23430404205 is a `hidden beast` number, since 23 + 4 + 30 + 404 + 205 = 666.

It is not a de Polignac number, because 23430404205 - 2⁴ = 23430404189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430404209) 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 143 ways as a sum of consecutive naturals, for example, 35446575 + ... + 35447235.

It is an arithmetic number, because the mean of its divisors is an integer number (314979600).

Almost surely, 2^23430404205 is an apocalyptic number.

It is an amenable number.

23430404205 is a deficient number, since it is larger than the sum of its proper divisors (21926658195).

23430404205 is a wasteful number, since it uses less digits than its factorization.

23430404205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 23430404205 its reverse (50240403432), we get a palindrome (73670807637).

The spelling of 23430404205 in words is "twenty-three billion, four hundred thirty million, four hundred four thousand, two hundred five".