20323311030 has 96 divisors (see below), whose sum is σ = 58154747040. Its totient is φ = 4883235840.

The previous prime is 20323310999. The next prime is 20323311119. The reversal of 20323311030 is 3011332302.

20323311030 is a `hidden beast` number, since 2 + 0 + 323 + 311 + 0 + 30 = 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 = 20323310994 and 20323311012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21036 + ... + 202704.

It is an arithmetic number, because the mean of its divisors is an integer number (605778615).

Almost surely, 2^20323311030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20323311030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29077373520).

20323311030 is an abundant number, since it is smaller than the sum of its proper divisors (37831436010).

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

20323311030 is a wasteful number, since it uses less digits than its factorization.

20323311030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181806 (or 181803 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20323311030 its reverse (3011332302), we get a palindrome (23334643332).

The spelling of 20323311030 in words is "twenty billion, three hundred twenty-three million, three hundred eleven thousand, thirty".