20431760403 has 8 divisors (see below), whose sum is σ = 28844838288. Its totient is φ = 12819928064.

The previous prime is 20431760359. The next prime is 20431760443. The reversal of 20431760403 is 30406713402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20431760403 - 2¹² = 20431756307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20431760443) 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 7 ways as a sum of consecutive naturals, for example, 200311326 + ... + 200311427.

It is an arithmetic number, because the mean of its divisors is an integer number (3605604786).

Almost surely, 2^20431760403 is an apocalyptic number.

20431760403 is a deficient number, since it is larger than the sum of its proper divisors (8413077885).

20431760403 is a wasteful number, since it uses less digits than its factorization.

20431760403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400622773.

The product of its (nonzero) digits is 12096, while the sum is 30.

The spelling of 20431760403 in words is "twenty billion, four hundred thirty-one million, seven hundred sixty thousand, four hundred three".