11823728117 has 2 divisors, whose sum is σ = 11823728118. Its totient is φ = 11823728116.

The previous prime is 11823728093. The next prime is 11823728141. The reversal of 11823728117 is 71182732811.

It is a balanced prime because it is at equal distance from previous prime (11823728093) and next prime (11823728141).

It can be written as a sum of positive squares in only one way, i.e., 10388909476 + 1434818641 = 101926^2 + 37879^2 .

It is an emirp because it is prime and its reverse (71182732811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11823728117 - 2¹² = 11823724021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11823728617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5911864058 + 5911864059.

It is an arithmetic number, because the mean of its divisors is an integer number (5911864059).

Almost surely, 2^11823728117 is an apocalyptic number.

It is an amenable number.

11823728117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11823728117 is an equidigital number, since it uses as much as digits as its factorization.

11823728117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 41.

The spelling of 11823728117 in words is "eleven billion, eight hundred twenty-three million, seven hundred twenty-eight thousand, one hundred seventeen".