11512520125050 has 192 divisors, whose sum is σ = 33383414110464. Its totient is φ = 2571067699200.

The previous prime is 11512520125039. The next prime is 11512520125069. The reversal of 11512520125050 is 5052102521511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11512520124999 and 11512520125017.

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, 12982452 + ... + 13840848.

It is an arithmetic number, because the mean of its divisors is an integer number (173871948492).

Almost surely, 2^{11512520125050} is an apocalyptic number.

11512520125050 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 11512520125050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16691707055232).

11512520125050 is an abundant number, since it is smaller than the sum of its proper divisors (21870893985414).

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

11512520125050 is a wasteful number, since it uses less digits than its factorization.

11512520125050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858713 (or 858708 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 30.

Adding to 11512520125050 its reverse (5052102521511), we get a palindrome (16564622646561).

The spelling of 11512520125050 in words is "eleven trillion, five hundred twelve billion, five hundred twenty million, one hundred twenty-five thousand, fifty".