30430312144 has 40 divisors (see below), whose sum is σ = 62172404640. Its totient is φ = 14388674688.

The previous prime is 30430312117. The next prime is 30430312147. The reversal of 30430312144 is 44121303403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30430312147) 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, 82254 + ... + 260050.

It is an arithmetic number, because the mean of its divisors is an integer number (1554310116).

Almost surely, 2^30430312144 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 30430312144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31086202320).

30430312144 is an abundant number, since it is smaller than the sum of its proper divisors (31742092496).

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

30430312144 is a wasteful number, since it uses less digits than its factorization.

30430312144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178387 (or 178381 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 30430312144 its reverse (44121303403), we get a palindrome (74551615547).

The spelling of 30430312144 in words is "thirty billion, four hundred thirty million, three hundred twelve thousand, one hundred forty-four".