1423131443 has 4 divisors (see below), whose sum is σ = 1457842008. Its totient is φ = 1388420880.

The previous prime is 1423131427. The next prime is 1423131473. The reversal of 1423131443 is 3441313241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3441313241 = 11437 ⋅300893.

It is a cyclic number.

It is not a de Polignac number, because 1423131443 - 2⁴ = 1423131427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423131473) 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, 17355221 + ... + 17355302.

It is an arithmetic number, because the mean of its divisors is an integer number (364460502).

Almost surely, 2^1423131443 is an apocalyptic number.

1423131443 is a deficient number, since it is larger than the sum of its proper divisors (34710565).

1423131443 is an equidigital number, since it uses as much as digits as its factorization.

1423131443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34710564.

The product of its digits is 3456, while the sum is 26.

The square root of 1423131443 is about 37724.4144156009. The cubic root of 1423131443 is about 1124.8164818014.

Adding to 1423131443 its reverse (3441313241), we get a palindrome (4864444684).

The spelling of 1423131443 in words is "one billion, four hundred twenty-three million, one hundred thirty-one thousand, four hundred forty-three".