30000121112320 has 144 divisors (see below), whose sum is σ = 75260712102912. Its totient is φ = 11435948789760.

The previous prime is 30000121112317. The next prime is 30000121112341. The reversal of 30000121112320 is 2321112100003.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30000121112294 and 30000121112303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6098119 + ... + 9858361.

It is an arithmetic number, because the mean of its divisors is an integer number (522643834048).

Almost surely, 2^{30000121112320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30000121112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37630356051456).

30000121112320 is an abundant number, since it is smaller than the sum of its proper divisors (45260590990592).

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

30000121112320 is a wasteful number, since it uses less digits than its factorization.

30000121112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760558 (or 3760544 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30000121112320 its reverse (2321112100003), we get a palindrome (32321233212323).

The spelling of 30000121112320 in words is "thirty trillion, one hundred twenty-one million, one hundred twelve thousand, three hundred twenty".