30155301200 has 120 divisors (see below), whose sum is σ = 74887424160. Its totient is φ = 11662732800.

The previous prime is 30155301179. The next prime is 30155301251. The reversal of 30155301200 is 210355103.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1429127 + ... + 1450073.

It is an arithmetic number, because the mean of its divisors is an integer number (624061868).

Almost surely, 2^30155301200 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 30155301200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37443712080).

30155301200 is an abundant number, since it is smaller than the sum of its proper divisors (44732122960).

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

30155301200 is a wasteful number, since it uses less digits than its factorization.

30155301200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21085 (or 21074 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

Adding to 30155301200 its reverse (210355103), we get a palindrome (30365656303).

The spelling of 30155301200 in words is "thirty billion, one hundred fifty-five million, three hundred one thousand, two hundred".