2123510130 has 192 divisors, whose sum is σ = 6510067200. Its totient is φ = 470154240.

The previous prime is 2123510117. The next prime is 2123510143. The reversal of 2123510130 is 310153212.

2123510130 is a `hidden beast` number, since 2 + 1 + 23 + 510 + 130 = 666.

2123510130 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2123510117) and next prime (2123510143).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5914891 + ... + 5915249.

It is an arithmetic number, because the mean of its divisors is an integer number (33906600).

Almost surely, 2^2123510130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123510130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3255033600).

2123510130 is an abundant number, since it is smaller than the sum of its proper divisors (4386557070).

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

2123510130 is a wasteful number, since it uses less digits than its factorization.

2123510130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2123510130 is about 46081.5595439217. The cubic root of 2123510130 is about 1285.3402642744.

Adding to 2123510130 its reverse (310153212), we get a palindrome (2433663342).

The spelling of 2123510130 in words is "two billion, one hundred twenty-three million, five hundred ten thousand, one hundred thirty".