20003219975 has 12 divisors (see below), whose sum is σ = 25331738784. Its totient is φ = 15662094720.

The previous prime is 20003219941. The next prime is 20003219981. The reversal of 20003219975 is 57991230002.

It is not a de Polignac number, because 20003219975 - 2¹⁸ = 20002957831 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8510834 + ... + 8513183.

It is an arithmetic number, because the mean of its divisors is an integer number (2110978232).

Almost surely, 2^20003219975 is an apocalyptic number.

20003219975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20003219975 is a deficient number, since it is larger than the sum of its proper divisors (5328518809).

20003219975 is a wasteful number, since it uses less digits than its factorization.

20003219975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17024074 (or 17024069 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

Adding to 20003219975 its reverse (57991230002), we get a palindrome (77994449977).

The spelling of 20003219975 in words is "twenty billion, three million, two hundred nineteen thousand, nine hundred seventy-five".