11523339907237 has 2 divisors, whose sum is σ = 11523339907238. Its totient is φ = 11523339907236.

The previous prime is 11523339907213. The next prime is 11523339907259. The reversal of 11523339907237 is 73270993332511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11262192334561 + 261147572676 = 3355919^2 + 511026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11523339907237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11523339907267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5761669953618 + 5761669953619.

It is an arithmetic number, because the mean of its divisors is an integer number (5761669953619).

Almost surely, 2^{11523339907237} is an apocalyptic number.

It is an amenable number.

11523339907237 is a deficient number, since it is larger than the sum of its proper divisors (1).

11523339907237 is an equidigital number, since it uses as much as digits as its factorization.

11523339907237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6429780, while the sum is 55.

The spelling of 11523339907237 in words is "eleven trillion, five hundred twenty-three billion, three hundred thirty-nine million, nine hundred seven thousand, two hundred thirty-seven".