101231300220 has 96 divisors (see below), whose sum is σ = 287688215808. Its totient is φ = 26592072192.

The previous prime is 101231300153. The next prime is 101231300267. The reversal of 101231300220 is 22003132101.

It is a super-2 number, since 2×101231300220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101231300220.

It is a congruent number.

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, 3608287 + ... + 3636233.

It is an arithmetic number, because the mean of its divisors is an integer number (2996752248).

Almost surely, 2^101231300220 is an apocalyptic number.

101231300220 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 101231300220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143844107904).

101231300220 is an abundant number, since it is smaller than the sum of its proper divisors (186456915588).

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

101231300220 is a wasteful number, since it uses less digits than its factorization.

101231300220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28859 (or 28857 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 101231300220 its reverse (22003132101), we get a palindrome (123234432321).

The spelling of 101231300220 in words is "one hundred one billion, two hundred thirty-one million, three hundred thousand, two hundred twenty".