11520203877 has 48 divisors (see below), whose sum is σ = 20710609920. Its totient is φ = 6008276736.

The previous prime is 11520203839. The next prime is 11520203881. The reversal of 11520203877 is 77830202511.

11520203877 is a `hidden beast` number, since 11 + 520 + 20 + 38 + 77 = 666.

11520203877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11520203877 - 2⁷ = 11520203749 is a prime.

It is a super-2 number, since 2×11520203877² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520283877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6133 + ... + 151914.

It is an arithmetic number, because the mean of its divisors is an integer number (431471040).

Almost surely, 2^11520203877 is an apocalyptic number.

It is an amenable number.

11520203877 is a deficient number, since it is larger than the sum of its proper divisors (9190406043).

11520203877 is a wasteful number, since it uses less digits than its factorization.

11520203877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158162 (or 158159 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 11520203877 in words is "eleven billion, five hundred twenty million, two hundred three thousand, eight hundred seventy-seven".