30520225423020 has 192 divisors, whose sum is σ = 90698772971520. Its totient is φ = 7652459772672.

The previous prime is 30520225422983. The next prime is 30520225423049. The reversal of 30520225423020 is 2032452202503.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24130909 + ... + 25364171.

It is an arithmetic number, because the mean of its divisors is an integer number (472389442560).

Almost surely, 2^{30520225423020} is an apocalyptic number.

30520225423020 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 30520225423020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45349386485760).

30520225423020 is an abundant number, since it is smaller than the sum of its proper divisors (60178547548500).

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

30520225423020 is a wasteful number, since it uses less digits than its factorization.

30520225423020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233604 (or 1233602 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 30520225423020 its reverse (2032452202503), we get a palindrome (32552677625523).

The spelling of 30520225423020 in words is "thirty trillion, five hundred twenty billion, two hundred twenty-five million, four hundred twenty-three thousand, twenty".