20023102311030 has 256 divisors, whose sum is σ = 65721453557760. Its totient is φ = 4224358531584.

The previous prime is 20023102311011. The next prime is 20023102311067. The reversal of 20023102311030 is 3011320132002.

20023102311030 is a `hidden beast` number, since 20 + 0 + 2 + 310 + 231 + 103 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20023102310994 and 20023102311012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 688608852 + ... + 688637928.

It is an arithmetic number, because the mean of its divisors is an integer number (256724427960).

Almost surely, 2^{20023102311030} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023102311030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32860726778880).

20023102311030 is an abundant number, since it is smaller than the sum of its proper divisors (45698351246730).

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

20023102311030 is a wasteful number, since it uses less digits than its factorization.

20023102311030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57140 (or 57134 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20023102311030 its reverse (3011320132002), we get a palindrome (23034422443032).

The spelling of 20023102311030 in words is "twenty trillion, twenty-three billion, one hundred two million, three hundred eleven thousand, thirty".