11120120072 has 8 divisors (see below), whose sum is σ = 20850225150. Its totient is φ = 5560060032.

The previous prime is 11120120071. The next prime is 11120120083. The reversal of 11120120072 is 27002102111.

It can be written as a sum of positive squares in only one way, i.e., 7355806756 + 3764313316 = 85766^2 + 61354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 11120120072.

It is not an unprimeable number, because it can be changed into a prime (11120120071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695007497 + ... + 695007512.

Almost surely, 2^11120120072 is an apocalyptic number.

It is an amenable number.

11120120072 is a deficient number, since it is larger than the sum of its proper divisors (9730105078).

11120120072 is a wasteful number, since it uses less digits than its factorization.

11120120072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390015015 (or 1390015011 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 11120120072 its reverse (27002102111), we get a palindrome (38122222183).

The spelling of 11120120072 in words is "eleven billion, one hundred twenty million, one hundred twenty thousand, seventy-two".