11431126604389 has 2 divisors, whose sum is σ = 11431126604390. Its totient is φ = 11431126604388.

The previous prime is 11431126604347. The next prime is 11431126604503. The reversal of 11431126604389 is 98340662113411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9299803995364 + 2131322609025 = 3049558^2 + 1459905^2 .

It is an emirp because it is prime and its reverse (98340662113411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11431126604389 - 2³⁵ = 11396766866021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11431126604329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5715563302194 + 5715563302195.

It is an arithmetic number, because the mean of its divisors is an integer number (5715563302195).

Almost surely, 2^{11431126604389} is an apocalyptic number.

It is an amenable number.

11431126604389 is a deficient number, since it is larger than the sum of its proper divisors (1).

11431126604389 is an equidigital number, since it uses as much as digits as its factorization.

11431126604389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 11431126604389 in words is "eleven trillion, four hundred thirty-one billion, one hundred twenty-six million, six hundred four thousand, three hundred eighty-nine".