72511128323 has 2 divisors, whose sum is σ = 72511128324. Its totient is φ = 72511128322.

The previous prime is 72511128289. The next prime is 72511128353. The reversal of 72511128323 is 32382111527.

It is a strong prime.

It is an emirp because it is prime and its reverse (32382111527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72511128323 - 2⁶ = 72511128259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (72511128353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36255564161 + 36255564162.

It is an arithmetic number, because the mean of its divisors is an integer number (36255564162).

Almost surely, 2^72511128323 is an apocalyptic number.

72511128323 is a deficient number, since it is larger than the sum of its proper divisors (1).

72511128323 is an equidigital number, since it uses as much as digits as its factorization.

72511128323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The spelling of 72511128323 in words is "seventy-two billion, five hundred eleven million, one hundred twenty-eight thousand, three hundred twenty-three".