2120115030 has 64 divisors (see below), whose sum is σ = 5559840000. Its totient is φ = 513134720.

The previous prime is 2120115029. The next prime is 2120115031. The reversal of 2120115030 is 305110212.

It is an interprime number because it is at equal distance from previous prime (2120115029) and next prime (2120115031).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120115031) 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, 212596 + ... + 222344.

It is an arithmetic number, because the mean of its divisors is an integer number (86872500).

Almost surely, 2^2120115030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120115030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2779920000).

2120115030 is an abundant number, since it is smaller than the sum of its proper divisors (3439724970).

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

2120115030 is a wasteful number, since it uses less digits than its factorization.

2120115030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10429.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2120115030 is about 46044.7068619185. The cubic root of 2120115030 is about 1284.6548917545.

Adding to 2120115030 its reverse (305110212), we get a palindrome (2425225242).

The spelling of 2120115030 in words is "two billion, one hundred twenty million, one hundred fifteen thousand, thirty".