30123110130 has 64 divisors (see below), whose sum is σ = 74897630208. Its totient is φ = 7745575680.

The previous prime is 30123110117. The next prime is 30123110137. The reversal of 30123110130 is 3101132103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (30123110137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199144 + ... + 316076.

It is an arithmetic number, because the mean of its divisors is an integer number (1170275472).

Almost surely, 2^30123110130 is an apocalyptic number.

30123110130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30123110130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37448815104).

30123110130 is an abundant number, since it is smaller than the sum of its proper divisors (44774520078).

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

30123110130 is a wasteful number, since it uses less digits than its factorization.

30123110130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117251.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 30123110130 its reverse (3101132103), we get a palindrome (33224242233).

The spelling of 30123110130 in words is "thirty billion, one hundred twenty-three million, one hundred ten thousand, one hundred thirty".