20003258071 has 4 divisors (see below), whose sum is σ = 20149267392. Its totient is φ = 19857248752.

The previous prime is 20003258027. The next prime is 20003258087. The reversal of 20003258071 is 17085230002.

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 20003258071 - 2⁷ = 20003257943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003258371) 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 3 ways as a sum of consecutive naturals, for example, 73004455 + ... + 73004728.

It is an arithmetic number, because the mean of its divisors is an integer number (5037316848).

Almost surely, 2^20003258071 is an apocalyptic number.

20003258071 is a deficient number, since it is larger than the sum of its proper divisors (146009321).

20003258071 is a wasteful number, since it uses less digits than its factorization.

20003258071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146009320.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 20003258071 its reverse (17085230002), we get a palindrome (37088488073).

The spelling of 20003258071 in words is "twenty billion, three million, two hundred fifty-eight thousand, seventy-one".