11353532381 has 2 divisors, whose sum is σ = 11353532382. Its totient is φ = 11353532380.

The previous prime is 11353532329. The next prime is 11353532417. The reversal of 11353532381 is 18323535311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5996024356 + 5357508025 = 77434^2 + 73195^2 .

It is a cyclic number.

It is not a de Polignac number, because 11353532381 - 2¹⁸ = 11353270237 is a prime.

It is a super-2 number, since 2×11353532381² (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 (11353532081) 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, 5676766190 + 5676766191.

It is an arithmetic number, because the mean of its divisors is an integer number (5676766191).

Almost surely, 2^11353532381 is an apocalyptic number.

It is an amenable number.

11353532381 is a deficient number, since it is larger than the sum of its proper divisors (1).

11353532381 is an equidigital number, since it uses as much as digits as its factorization.

11353532381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 35.

The spelling of 11353532381 in words is "eleven billion, three hundred fifty-three million, five hundred thirty-two thousand, three hundred eighty-one".