101000020000 has 120 divisors (see below), whose sum is σ = 271064444112. Its totient is φ = 36727200000.

The previous prime is 101000019997. The next prime is 101000020021. The reversal of 101000020000 is 20000101.

It is a Harshad number since it is a multiple of its sum of digits (4).

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, 9546 + ... + 449545.

Almost surely, 2^101000020000 is an apocalyptic number.

101000020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101000020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135532222056).

101000020000 is an abundant number, since it is smaller than the sum of its proper divisors (170064424112).

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

101000020000 is an equidigital number, since it uses as much as digits as its factorization.

101000020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459132 (or 459109 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 101000020000 its reverse (20000101), we get a palindrome (101020020101).

The spelling of 101000020000 in words is "one hundred one billion, twenty thousand".