11400013381 has 2 divisors, whose sum is σ = 11400013382. Its totient is φ = 11400013380.

The previous prime is 11400013369. The next prime is 11400013451. The reversal of 11400013381 is 18331000411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10283785281 + 1116228100 = 101409^2 + 33410^2 .

It is a cyclic number.

It is not a de Polignac number, because 11400013381 - 2¹³ = 11400005189 is a prime.

It is a super-2 number, since 2×11400013381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11400013081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700006690 + 5700006691.

It is an arithmetic number, because the mean of its divisors is an integer number (5700006691).

Almost surely, 2^11400013381 is an apocalyptic number.

It is an amenable number.

11400013381 is a deficient number, since it is larger than the sum of its proper divisors (1).

11400013381 is an equidigital number, since it uses as much as digits as its factorization.

11400013381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 11400013381 its reverse (18331000411), we get a palindrome (29731013792).

The spelling of 11400013381 in words is "eleven billion, four hundred million, thirteen thousand, three hundred eighty-one".