30201000121320 has 256 divisors, whose sum is σ = 104992901222400. Its totient is φ = 6807312230400.

The previous prime is 30201000121309. The next prime is 30201000121321. The reversal of 30201000121320 is 2312100010203.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30201000121320.

It is not an unprimeable number, because it can be changed into a prime (30201000121321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16508091 + ... + 18246069.

It is an arithmetic number, because the mean of its divisors is an integer number (410128520400).

Almost surely, 2^{30201000121320} is an apocalyptic number.

30201000121320 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 30201000121320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52496450611200).

30201000121320 is an abundant number, since it is smaller than the sum of its proper divisors (74791901101080).

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

30201000121320 is a wasteful number, since it uses less digits than its factorization.

30201000121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738288 (or 1738284 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30201000121320 its reverse (2312100010203), we get a palindrome (32513100131523).

The spelling of 30201000121320 in words is "thirty trillion, two hundred one billion, one hundred twenty-one thousand, three hundred twenty".