443231132381 has 2 divisors, whose sum is σ = 443231132382. Its totient is φ = 443231132380.

The previous prime is 443231132347. The next prime is 443231132417. The reversal of 443231132381 is 183231132344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 414311068900 + 28920063481 = 643670^2 + 170059^2 .

It is a cyclic number.

It is not a de Polignac number, because 443231132381 - 2¹⁸ = 443230870237 is a prime.

It is a super-2 number, since 2×443231132381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443231132081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221615566190 + 221615566191.

It is an arithmetic number, because the mean of its divisors is an integer number (221615566191).

Almost surely, 2^443231132381 is an apocalyptic number.

It is an amenable number.

443231132381 is a deficient number, since it is larger than the sum of its proper divisors (1).

443231132381 is an equidigital number, since it uses as much as digits as its factorization.

443231132381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The spelling of 443231132381 in words is "four hundred forty-three billion, two hundred thirty-one million, one hundred thirty-two thousand, three hundred eighty-one".