11218072321 has 8 divisors (see below), whose sum is σ = 12008642400. Its totient is φ = 10447516800.

The previous prime is 11218072309. The next prime is 11218072339. The reversal of 11218072321 is 12327081211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11218072321 - 2¹⁹ = 11217548033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11218072321.

It is not an unprimeable number, because it can be changed into a prime (11218072301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5002480 + ... + 5004721.

It is an arithmetic number, because the mean of its divisors is an integer number (1501080300).

Almost surely, 2^11218072321 is an apocalyptic number.

It is an amenable number.

11218072321 is a deficient number, since it is larger than the sum of its proper divisors (790570079).

11218072321 is a wasteful number, since it uses less digits than its factorization.

11218072321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007279.

The product of its (nonzero) digits is 1344, while the sum is 28.

The spelling of 11218072321 in words is "eleven billion, two hundred eighteen million, seventy-two thousand, three hundred twenty-one".