11515002030 has 96 divisors (see below), whose sum is σ = 34326609408. Its totient is φ = 2623492800.

The previous prime is 11515002029. The next prime is 11515002053. The reversal of 11515002030 is 3020051511.

11515002030 is a `hidden beast` number, since 115 + 1 + 500 + 20 + 30 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11515001994 and 11515002012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166545 + ... + 225315.

It is an arithmetic number, because the mean of its divisors is an integer number (357568848).

Almost surely, 2^11515002030 is an apocalyptic number.

11515002030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11515002030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17163304704).

11515002030 is an abundant number, since it is smaller than the sum of its proper divisors (22811607378).

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

11515002030 is a wasteful number, since it uses less digits than its factorization.

11515002030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59102 (or 59099 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

Adding to 11515002030 its reverse (3020051511), we get a palindrome (14535053541).

The spelling of 11515002030 in words is "eleven billion, five hundred fifteen million, two thousand, thirty".