11724236413 has 2 divisors, whose sum is σ = 11724236414. Its totient is φ = 11724236412.

The previous prime is 11724236399. The next prime is 11724236437. The reversal of 11724236413 is 31463242711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7694272089 + 4029964324 = 87717^2 + 63482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11724236413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11724236443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5862118206 + 5862118207.

It is an arithmetic number, because the mean of its divisors is an integer number (5862118207).

Almost surely, 2^11724236413 is an apocalyptic number.

It is an amenable number.

11724236413 is a deficient number, since it is larger than the sum of its proper divisors (1).

11724236413 is an equidigital number, since it uses as much as digits as its factorization.

11724236413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The spelling of 11724236413 in words is "eleven billion, seven hundred twenty-four million, two hundred thirty-six thousand, four hundred thirteen".