30331134240 has 192 divisors, whose sum is σ = 104756198400. Its totient is φ = 7315799040.

The previous prime is 30331134227. The next prime is 30331134247. The reversal of 30331134240 is 4243113303.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30331134240.

It is not an unprimeable number, because it can be changed into a prime (30331134247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1036287 + ... + 1065153.

It is an arithmetic number, because the mean of its divisors is an integer number (545605200).

Almost surely, 2^30331134240 is an apocalyptic number.

30331134240 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 30331134240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52378099200).

30331134240 is an abundant number, since it is smaller than the sum of its proper divisors (74425064160).

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

30331134240 is a wasteful number, since it uses less digits than its factorization.

30331134240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29095 (or 29087 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 30331134240 its reverse (4243113303), we get a palindrome (34574247543).

The spelling of 30331134240 in words is "thirty billion, three hundred thirty-one million, one hundred thirty-four thousand, two hundred forty".