11385171140 has 24 divisors (see below), whose sum is σ = 27324411072. Its totient is φ = 3903487200.

The previous prime is 11385171137. The next prime is 11385171169. The reversal of 11385171140 is 4117158311.

It is a junction number, because it is equal to n+sod(n) for n = 11385171097 and 11385171106.

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, 40661186 + ... + 40661465.

It is an arithmetic number, because the mean of its divisors is an integer number (1138517128).

Almost surely, 2^11385171140 is an apocalyptic number.

11385171140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11385171140 is an abundant number, since it is smaller than the sum of its proper divisors (15939239932).

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

11385171140 is a wasteful number, since it uses less digits than its factorization.

11385171140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81322667 (or 81322665 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 32.

The spelling of 11385171140 in words is "eleven billion, three hundred eighty-five million, one hundred seventy-one thousand, one hundred forty".