20432760403 has 4 divisors (see below), whose sum is σ = 22290284088. Its totient is φ = 18575236720.

The previous prime is 20432760389. The next prime is 20432760437. The reversal of 20432760403 is 30406723402.

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-20432760403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20432760443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 928761826 + ... + 928761847.

It is an arithmetic number, because the mean of its divisors is an integer number (5572571022).

Almost surely, 2^20432760403 is an apocalyptic number.

20432760403 is a deficient number, since it is larger than the sum of its proper divisors (1857523685).

20432760403 is a wasteful number, since it uses less digits than its factorization.

20432760403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857523684.

The product of its (nonzero) digits is 24192, while the sum is 31.

The spelling of 20432760403 in words is "twenty billion, four hundred thirty-two million, seven hundred sixty thousand, four hundred three".