30123022144 has 56 divisors (see below), whose sum is σ = 60430565448. Its totient is φ = 14896742400.

The previous prime is 30123022133. The next prime is 30123022151. The reversal of 30123022144 is 44122032103.

It can be written as a sum of positive squares in 4 ways, for example, as 20139015744 + 9984006400 = 141912^2 + 99920^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8382012 + ... + 8385604.

Almost surely, 2^30123022144 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 30123022144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30215282724).

30123022144 is an abundant number, since it is smaller than the sum of its proper divisors (30307543304).

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

30123022144 is a wasteful number, since it uses less digits than its factorization.

30123022144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003 (or 4993 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 30123022144 its reverse (44122032103), we get a palindrome (74245054247).

The spelling of 30123022144 in words is "thirty billion, one hundred twenty-three million, twenty-two thousand, one hundred forty-four".