72321212327 has 16 divisors (see below), whose sum is σ = 89086224192. Its totient is φ = 57172642560.

The previous prime is 72321212311. The next prime is 72321212363.

72321212327 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 72321212327 - 2⁴ = 72321212311 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 72321212293 and 72321212302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72321212387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228998 + ... + 443939.

It is an arithmetic number, because the mean of its divisors is an integer number (5567889012).

Almost surely, 2^72321212327 is an apocalyptic number.

72321212327 is a deficient number, since it is larger than the sum of its proper divisors (16765011865).

72321212327 is a wasteful number, since it uses less digits than its factorization.

72321212327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674138.

The product of its digits is 14112, while the sum is 32.

The spelling of 72321212327 in words is "seventy-two billion, three hundred twenty-one million, two hundred twelve thousand, three hundred twenty-seven".