11321424211381 has 2 divisors, whose sum is σ = 11321424211382. Its totient is φ = 11321424211380.

The previous prime is 11321424211333. The next prime is 11321424211397. The reversal of 11321424211381 is 18311242412311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8766010955025 + 2555413256356 = 2960745^2 + 1598566^2 .

It is a cyclic number.

It is not a de Polignac number, because 11321424211381 - 2²⁵ = 11321390656949 is a prime.

It is a super-2 number, since 2×11321424211381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321424212381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660712105690 + 5660712105691.

It is an arithmetic number, because the mean of its divisors is an integer number (5660712105691).

Almost surely, 2^{11321424211381} is an apocalyptic number.

It is an amenable number.

11321424211381 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321424211381 is an equidigital number, since it uses as much as digits as its factorization.

11321424211381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 34.

Adding to 11321424211381 its reverse (18311242412311), we get a palindrome (29632666623692).

The spelling of 11321424211381 in words is "eleven trillion, three hundred twenty-one billion, four hundred twenty-four million, two hundred eleven thousand, three hundred eighty-one".