11505612323 has 2 divisors, whose sum is σ = 11505612324. Its totient is φ = 11505612322.

The previous prime is 11505612289. The next prime is 11505612401. The reversal of 11505612323 is 32321650511.

It is a weak prime.

It is an emirp because it is prime and its reverse (32321650511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11505612323 - 2⁶ = 11505612259 is a prime.

It is a super-2 number, since 2×11505612323² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11505672323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5752806161 + 5752806162.

It is an arithmetic number, because the mean of its divisors is an integer number (5752806162).

Almost surely, 2^11505612323 is an apocalyptic number.

11505612323 is a deficient number, since it is larger than the sum of its proper divisors (1).

11505612323 is an equidigital number, since it uses as much as digits as its factorization.

11505612323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 11505612323 in words is "eleven billion, five hundred five million, six hundred twelve thousand, three hundred twenty-three".