30331200144 has 40 divisors (see below), whose sum is σ = 89549258560. Its totient is φ = 8666057088.

The previous prime is 30331200143. The next prime is 30331200157. The reversal of 30331200144 is 44100213303.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30331200144.

It is not an unprimeable number, because it can be changed into a prime (30331200143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45135379 + ... + 45136050.

It is an arithmetic number, because the mean of its divisors is an integer number (2238731464).

Almost surely, 2^30331200144 is an apocalyptic number.

It is an amenable number.

30331200144 is an abundant number, since it is smaller than the sum of its proper divisors (59218058416).

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

30331200144 is a wasteful number, since it uses less digits than its factorization.

30331200144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90271447 (or 90271441 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30331200144 its reverse (44100213303), we get a palindrome (74431413447).

The spelling of 30331200144 in words is "thirty billion, three hundred thirty-one million, two hundred thousand, one hundred forty-four".