20011020000 has 120 divisors (see below), whose sum is σ = 65640344616. Its totient is φ = 5336256000.

The previous prime is 20011019983. The next prime is 20011020013. The reversal of 20011020000 is 2011002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106759 + ... + 226758.

Almost surely, 2^20011020000 is an apocalyptic number.

20011020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011020000 is an abundant number, since it is smaller than the sum of its proper divisors (45629324616).

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

20011020000 is an equidigital number, since it uses as much as digits as its factorization.

20011020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333550 (or 333527 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20011020000 its reverse (2011002), we get a palindrome (20013031002).

The spelling of 20011020000 in words is "twenty billion, eleven million, twenty thousand".