30020423024520 has 192 divisors, whose sum is σ = 98864751651120. Its totient is φ = 7899402534912.

The previous prime is 30020423024503. The next prime is 30020423024549. The reversal of 30020423024520 is 2542032402003.

It is a happy number.

30020423024520 is a `hidden beast` number, since 3 + 0 + 0 + 204 + 2 + 3 + 0 + 2 + 452 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2405545164324 + 27614877860196 = 1550982^2 + 5254986^2 .

It is a super-2 number, since 2×30020423024520² (a number of 28 digits) contains 22 as substring.

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, 10492534 + ... + 13043546.

Almost surely, 2^{30020423024520} is an apocalyptic number.

30020423024520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30020423024520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49432375825560).

30020423024520 is an abundant number, since it is smaller than the sum of its proper divisors (68844328626600).

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

30020423024520 is a wasteful number, since it uses less digits than its factorization.

30020423024520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551464 (or 2551457 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 30020423024520 its reverse (2542032402003), we get a palindrome (32562455426523).

The spelling of 30020423024520 in words is "thirty trillion, twenty billion, four hundred twenty-three million, twenty-four thousand, five hundred twenty".