11721733132 has 24 divisors (see below), whose sum is σ = 20607450192. Its totient is φ = 5833920000.

The previous prime is 11721733129. The next prime is 11721733141. The reversal of 11721733132 is 23133712711.

11721733132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×11721733132³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11721733094 and 11721733103.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2480532 + ... + 2485252.

It is an arithmetic number, because the mean of its divisors is an integer number (858643758).

Almost surely, 2^11721733132 is an apocalyptic number.

It is an amenable number.

11721733132 is a deficient number, since it is larger than the sum of its proper divisors (8885717060).

11721733132 is a wasteful number, since it uses less digits than its factorization.

11721733132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7449 (or 7447 counting only the distinct ones).

The product of its digits is 5292, while the sum is 31.

The spelling of 11721733132 in words is "eleven billion, seven hundred twenty-one million, seven hundred thirty-three thousand, one hundred thirty-two".