20101020232230 has 192 divisors, whose sum is σ = 60041689344000. Its totient is φ = 4570501178880.

The previous prime is 20101020232193. The next prime is 20101020232243. The reversal of 20101020232230 is 3223202010102.

20101020232230 is a `hidden beast` number, since 201 + 0 + 1 + 0 + 2 + 0 + 232 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 105946191 + ... + 106135749.

It is an arithmetic number, because the mean of its divisors is an integer number (312717132000).

Almost surely, 2^{20101020232230} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20101020232230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30020844672000).

20101020232230 is an abundant number, since it is smaller than the sum of its proper divisors (39940669111770).

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

20101020232230 is a wasteful number, since it uses less digits than its factorization.

20101020232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190459 (or 190456 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20101020232230 its reverse (3223202010102), we get a palindrome (23324222242332).

The spelling of 20101020232230 in words is "twenty trillion, one hundred one billion, twenty million, two hundred thirty-two thousand, two hundred thirty".