11512008157100 has 72 divisors (see below), whose sum is σ = 27305604673200. Its totient is φ = 4177960249600.

The previous prime is 11512008157099. The next prime is 11512008157129. The reversal of 11512008157100 is 175180021511.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9720515 + ... + 10840314.

It is an arithmetic number, because the mean of its divisors is an integer number (379244509350).

Almost surely, 2^{11512008157100} is an apocalyptic number.

11512008157100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11512008157100 is an abundant number, since it is smaller than the sum of its proper divisors (15793596516100).

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

11512008157100 is a wasteful number, since it uses less digits than its factorization.

11512008157100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20561363 (or 20561356 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 32.

Adding to 11512008157100 its reverse (175180021511), we get a palindrome (11687188178611).

The spelling of 11512008157100 in words is "eleven trillion, five hundred twelve billion, eight million, one hundred fifty-seven thousand, one hundred".