20503205002 has 8 divisors (see below), whose sum is σ = 35148351456. Its totient is φ = 8787087852.

The previous prime is 20503204973. The next prime is 20503205053. The reversal of 20503205002 is 20050230502.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732257308 + ... + 732257335.

It is an arithmetic number, because the mean of its divisors is an integer number (4393543932).

Almost surely, 2^20503205002 is an apocalyptic number.

20503205002 is a deficient number, since it is larger than the sum of its proper divisors (14645146454).

20503205002 is a wasteful number, since it uses less digits than its factorization.

20503205002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464514652.

The product of its (nonzero) digits is 600, while the sum is 19.

Adding to 20503205002 its reverse (20050230502), we get a palindrome (40553435504).

The spelling of 20503205002 in words is "twenty billion, five hundred three million, two hundred five thousand, two".