11505240131120 has 40 divisors (see below), whose sum is σ = 26866494191760. Its totient is φ = 4581999555840.

The previous prime is 11505240131083. The next prime is 11505240131141. The reversal of 11505240131120 is 2113104250511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 11505240131120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313989326 + ... + 314025965.

It is an arithmetic number, because the mean of its divisors is an integer number (671662354794).

Almost surely, 2^{11505240131120} is an apocalyptic number.

11505240131120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11505240131120 is an abundant number, since it is smaller than the sum of its proper divisors (15361254060640).

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

11505240131120 is a wasteful number, since it uses less digits than its factorization.

11505240131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628015533 (or 628015527 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 11505240131120 its reverse (2113104250511), we get a palindrome (13618344381631).

The spelling of 11505240131120 in words is "eleven trillion, five hundred five billion, two hundred forty million, one hundred thirty-one thousand, one hundred twenty".