20123210200030 has 64 divisors (see below), whose sum is σ = 43215169932288. Its totient is φ = 6596508441600.

The previous prime is 20123210200021. The next prime is 20123210200033. The reversal of 20123210200030 is 3000201232102.

It is a super-2 number, since 2×20123210200030² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20123210199977 and 20123210200013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123210200033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 910105 + ... + 6408955.

It is an arithmetic number, because the mean of its divisors is an integer number (675237030192).

Almost surely, 2^{20123210200030} is an apocalyptic number.

20123210200030 is an abundant number, since it is smaller than the sum of its proper divisors (23091959732258).

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

20123210200030 is a wasteful number, since it uses less digits than its factorization.

20123210200030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5501161.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20123210200030 its reverse (3000201232102), we get a palindrome (23123411432132).

The spelling of 20123210200030 in words is "twenty trillion, one hundred twenty-three billion, two hundred ten million, two hundred thousand, thirty".