101021302020 has 96 divisors (see below), whose sum is σ = 293325596928. Its totient is φ = 25956398592.

The previous prime is 101021302013. The next prime is 101021302033. The reversal of 101021302020 is 20203120101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 101021301987 and 101021302005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7762 + ... + 449558.

It is an arithmetic number, because the mean of its divisors is an integer number (3055474968).

Almost surely, 2^101021302020 is an apocalyptic number.

101021302020 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 101021302020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146662798464).

101021302020 is an abundant number, since it is smaller than the sum of its proper divisors (192304294908).

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

101021302020 is a wasteful number, since it uses less digits than its factorization.

101021302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441949 (or 441947 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 101021302020 its reverse (20203120101), we get a palindrome (121224422121).

The spelling of 101021302020 in words is "one hundred one billion, twenty-one million, three hundred two thousand, twenty".