20011010000 has 50 divisors (see below), whose sum is σ = 48448680522. Its totient is φ = 8004400000.

The previous prime is 20011009987. The next prime is 20011010009. The reversal of 20011010000 is 1011002.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 12845048896 + 7165961104 = 113336^2 + 84652^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011010009) 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 9 ways as a sum of consecutive naturals, for example, 990551 + ... + 1010550.

Almost surely, 2^20011010000 is an apocalyptic number.

20011010000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011010000 is an abundant number, since it is smaller than the sum of its proper divisors (28437670522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011010000 is an equidigital number, since it uses as much as digits as its factorization.

20011010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001129 (or 2001108 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 20011010000 its reverse (1011002), we get a palindrome (20012021002).

The spelling of 20011010000 in words is "twenty billion, eleven million, ten thousand".