1401444312443 has 4 divisors (see below), whose sum is σ = 1601650642800. Its totient is φ = 1201237982088.

The previous prime is 1401444312413. The next prime is 1401444312467. The reversal of 1401444312443 is 3442134441041.

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

It is a cyclic number.

It is not a de Polignac number, because 1401444312443 - 2¹⁶ = 1401444246907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401444312413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100103165168 + ... + 100103165181.

It is an arithmetic number, because the mean of its divisors is an integer number (400412660700).

Almost surely, 2^{1401444312443} is an apocalyptic number.

1401444312443 is a deficient number, since it is larger than the sum of its proper divisors (200206330357).

1401444312443 is an equidigital number, since it uses as much as digits as its factorization.

1401444312443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200206330356.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 1401444312443 its reverse (3442134441041), we get a palindrome (4843578753484).

The spelling of 1401444312443 in words is "one trillion, four hundred one billion, four hundred forty-four million, three hundred twelve thousand, four hundred forty-three".