101120200020 has 288 divisors, whose sum is σ = 371692129536. Its totient is φ = 21723033600.

The previous prime is 101120200019. The next prime is 101120200057. The reversal of 101120200020 is 20002021101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101120199975 and 101120200011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17368710 + ... + 17374530.

It is an arithmetic number, because the mean of its divisors is an integer number (1290597672).

Almost surely, 2^101120200020 is an apocalyptic number.

101120200020 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 101120200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185846064768).

101120200020 is an abundant number, since it is smaller than the sum of its proper divisors (270571929516).

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

101120200020 is a wasteful number, since it uses less digits than its factorization.

101120200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671 (or 6666 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 101120200020 its reverse (20002021101), we get a palindrome (121122221121).

The spelling of 101120200020 in words is "one hundred one billion, one hundred twenty million, two hundred thousand, twenty".