72430224211 has 2 divisors, whose sum is σ = 72430224212. Its totient is φ = 72430224210.

The previous prime is 72430224203. The next prime is 72430224239. The reversal of 72430224211 is 11242203427.

It is an a-pointer prime, because the next prime (72430224239) can be obtained adding 72430224211 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72430224211 - 2³ = 72430224203 is a prime.

It is a super-2 number, since 2×72430224211² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72430224211.

It is not a weakly prime, because it can be changed into another prime (72430204211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36215112105 + 36215112106.

It is an arithmetic number, because the mean of its divisors is an integer number (36215112106).

Almost surely, 2^72430224211 is an apocalyptic number.

72430224211 is a deficient number, since it is larger than the sum of its proper divisors (1).

72430224211 is an equidigital number, since it uses as much as digits as its factorization.

72430224211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 72430224211 its reverse (11242203427), we get a palindrome (83672427638).

The spelling of 72430224211 in words is "seventy-two billion, four hundred thirty million, two hundred twenty-four thousand, two hundred eleven".