443401314313231 has 4 divisors (see below), whose sum is σ = 455385133619032. Its totient is φ = 431417495007432.

The previous prime is 443401314313213. The next prime is 443401314313247. The reversal of 443401314313231 is 132313413104344.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443401314313231 is a prime.

It is a super-2 number, since 2×443401314313231² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 11983819305763 = 443401314313231 / (4 + 4 + 3 + 4 + 0 + 1 + 3 + 1 + 4 + 3 + 1 + 3 + 2 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443401314313831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5991909652845 + ... + 5991909652918.

It is an arithmetic number, because the mean of its divisors is an integer number (113846283404758).

Almost surely, 2^{443401314313231} is an apocalyptic number.

443401314313231 is a deficient number, since it is larger than the sum of its proper divisors (11983819305801).

443401314313231 is a wasteful number, since it uses less digits than its factorization.

443401314313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11983819305800.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 443401314313231 its reverse (132313413104344), we get a palindrome (575714727417575).

The spelling of 443401314313231 in words is "four hundred forty-three trillion, four hundred one billion, three hundred fourteen million, three hundred thirteen thousand, two hundred thirty-one".