20023411403 has 4 divisors (see below), whose sum is σ = 20200609848. Its totient is φ = 19846212960.

The previous prime is 20023411399. The next prime is 20023411477. The reversal of 20023411403 is 30411432002.

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 20023411403 - 2² = 20023411399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023411483) 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, 88599053 + ... + 88599278.

It is an arithmetic number, because the mean of its divisors is an integer number (5050152462).

Almost surely, 2^20023411403 is an apocalyptic number.

20023411403 is a deficient number, since it is larger than the sum of its proper divisors (177198445).

20023411403 is a wasteful number, since it uses less digits than its factorization.

20023411403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177198444.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20023411403 its reverse (30411432002), we get a palindrome (50434843405).

The spelling of 20023411403 in words is "twenty billion, twenty-three million, four hundred eleven thousand, four hundred three".