20423134503432 has 32 divisors (see below), whose sum is σ = 56730929176800. Its totient is φ = 6807711501072.

The previous prime is 20423134503391. The next prime is 20423134503467. The reversal of 20423134503432 is 23430543132402.

20423134503432 is a `hidden beast` number, since 2 + 0 + 4 + 231 + 34 + 50 + 343 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47275774098 + ... + 47275774529.

It is an arithmetic number, because the mean of its divisors is an integer number (1772841536775).

Almost surely, 2^{20423134503432} is an apocalyptic number.

It is an amenable number.

20423134503432 is an abundant number, since it is smaller than the sum of its proper divisors (36307794673368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20423134503432 is a wasteful number, since it uses less digits than its factorization.

20423134503432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94551548642 (or 94551548632 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 36.

Adding to 20423134503432 its reverse (23430543132402), we get a palindrome (43853677635834).

The spelling of 20423134503432 in words is "twenty trillion, four hundred twenty-three billion, one hundred thirty-four million, five hundred three thousand, four hundred thirty-two".