30000421232120 has 32 divisors (see below), whose sum is σ = 67534216041600. Its totient is φ = 11994254133888.

The previous prime is 30000421232101. The next prime is 30000421232129. The reversal of 30000421232120 is 2123212400003.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30000421232092 and 30000421232101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000421232129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 184741544 + ... + 184903863.

It is an arithmetic number, because the mean of its divisors is an integer number (2110444251300).

Almost surely, 2^{30000421232120} is an apocalyptic number.

It is an amenable number.

30000421232120 is an abundant number, since it is smaller than the sum of its proper divisors (37533794809480).

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

30000421232120 is a wasteful number, since it uses less digits than its factorization.

30000421232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369647447 (or 369647443 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 30000421232120 its reverse (2123212400003), we get a palindrome (32123633632123).

The spelling of 30000421232120 in words is "thirty trillion, four hundred twenty-one million, two hundred thirty-two thousand, one hundred twenty".