20500101004 has 24 divisors (see below), whose sum is σ = 35977132800. Its totient is φ = 10220956944.

The previous prime is 20500100987. The next prime is 20500101023. The reversal of 20500101004 is 40010100502.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2811147 + ... + 2818429.

It is an arithmetic number, because the mean of its divisors is an integer number (1499047200).

Almost surely, 2^20500101004 is an apocalyptic number.

It is an amenable number.

20500101004 is a deficient number, since it is larger than the sum of its proper divisors (15477031796).

20500101004 is a wasteful number, since it uses less digits than its factorization.

20500101004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9189 (or 9187 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

Adding to 20500101004 its reverse (40010100502), we get a palindrome (60510201506).

The spelling of 20500101004 in words is "twenty billion, five hundred million, one hundred one thousand, four".