20313123030 has 256 divisors, whose sum is σ = 59327769600. Its totient is φ = 4925491200.

The previous prime is 20313123011. The next prime is 20313123097. The reversal of 20313123030 is 3032131302.

20313123030 is a `hidden beast` number, since 20 + 31 + 312 + 303 + 0 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20313122994 and 20313123012.

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 127 ways as a sum of consecutive naturals, for example, 19933861 + ... + 19934879.

It is an arithmetic number, because the mean of its divisors is an integer number (231749100).

Almost surely, 2^20313123030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20313123030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29663884800).

20313123030 is an abundant number, since it is smaller than the sum of its proper divisors (39014646570).

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

20313123030 is a wasteful number, since it uses less digits than its factorization.

20313123030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1190 counting only the distinct ones).

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

Adding to 20313123030 its reverse (3032131302), we get a palindrome (23345254332).

The spelling of 20313123030 in words is "twenty billion, three hundred thirteen million, one hundred twenty-three thousand, thirty".