101011200020 has 48 divisors (see below), whose sum is σ = 214249976640. Its totient is φ = 40001435904.

The previous prime is 101011200019. The next prime is 101011200071. The reversal of 101011200020 is 20002110101.

It is a junction number, because it is equal to n+sod(n) for n = 101011199980 and 101011200007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750512 + ... + 874808.

It is an arithmetic number, because the mean of its divisors is an integer number (4463541180).

Almost surely, 2^101011200020 is an apocalyptic number.

101011200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101011200020 is an abundant number, since it is smaller than the sum of its proper divisors (113238776620).

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

101011200020 is a wasteful number, since it uses less digits than its factorization.

101011200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124712 (or 124710 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 101011200020 its reverse (20002110101), we get a palindrome (121013310121).

It can be divided in two parts, 10101 and 1200020, that added together give a palindrome (1210121).

The spelling of 101011200020 in words is "one hundred one billion, eleven million, two hundred thousand, twenty".