11993931241837 has 2 divisors, whose sum is σ = 11993931241838. Its totient is φ = 11993931241836.

The previous prime is 11993931241811. The next prime is 11993931241841. The reversal of 11993931241837 is 73814213939911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10412018818756 + 1581912423081 = 3226766^2 + 1257741^2 .

It is a cyclic number.

It is not a de Polignac number, because 11993931241837 - 2¹¹ = 11993931239789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11993931241807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5996965620918 + 5996965620919.

It is an arithmetic number, because the mean of its divisors is an integer number (5996965620919).

Almost surely, 2^{11993931241837} is an apocalyptic number.

It is an amenable number.

11993931241837 is a deficient number, since it is larger than the sum of its proper divisors (1).

11993931241837 is an equidigital number, since it uses as much as digits as its factorization.

11993931241837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8817984, while the sum is 61.

The spelling of 11993931241837 in words is "eleven trillion, nine hundred ninety-three billion, nine hundred thirty-one million, two hundred forty-one thousand, eight hundred thirty-seven".