101000201101020 has 288 divisors, whose sum is σ = 349551664757568. Its totient is φ = 23385089581056.

The previous prime is 101000201100961. The next prime is 101000201101049. The reversal of 101000201101020 is 20101102000101.

It is a happy number.

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 = 101000201100993 and 101000201101011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65551722 + ... + 67074798.

It is an arithmetic number, because the mean of its divisors is an integer number (1213721058186).

Almost surely, 2^{101000201101020} is an apocalyptic number.

101000201101020 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 101000201101020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174775832378784).

101000201101020 is an abundant number, since it is smaller than the sum of its proper divisors (248551463656548).

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

101000201101020 is a wasteful number, since it uses less digits than its factorization.

101000201101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524789 (or 1524784 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101000201101020 its reverse (20101102000101), we get a palindrome (121101303101121).

The spelling of 101000201101020 in words is "one hundred one trillion, two hundred one million, one hundred one thousand, twenty".