11920207120 has 40 divisors (see below), whose sum is σ = 28463528664. Its totient is φ = 4639214592.

The previous prime is 11920207093. The next prime is 11920207133. The reversal of 11920207120 is 2170202911.

It can be written as a sum of positive squares in 4 ways, for example, as 394896384 + 11525310736 = 19872^2 + 107356^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2010589 + ... + 2016508.

Almost surely, 2^11920207120 is an apocalyptic number.

11920207120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11920207120 is an abundant number, since it is smaller than the sum of its proper divisors (16543321544).

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

11920207120 is a wasteful number, since it uses less digits than its factorization.

11920207120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027147 (or 4027141 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 11920207120 in words is "eleven billion, nine hundred twenty million, two hundred seven thousand, one hundred twenty".