30023123500 has 96 divisors (see below), whose sum is σ = 67300833600. Its totient is φ = 11696140800.

The previous prime is 30023123461. The next prime is 30023123503. The reversal of 30023123500 is 532132003.

It is not an unprimeable number, because it can be changed into a prime (30023123503) 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, 3210832 + ... + 3220168.

It is an arithmetic number, because the mean of its divisors is an integer number (701050350).

Almost surely, 2^30023123500 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 30023123500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33650416800).

30023123500 is an abundant number, since it is smaller than the sum of its proper divisors (37277710100).

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

30023123500 is a wasteful number, since it uses less digits than its factorization.

30023123500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524 (or 9512 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

Adding to 30023123500 its reverse (532132003), we get a palindrome (30555255503).

The spelling of 30023123500 in words is "thirty billion, twenty-three million, one hundred twenty-three thousand, five hundred".