1443423443431 has 2 divisors, whose sum is σ = 1443423443432. Its totient is φ = 1443423443430.

The previous prime is 1443423443411. The next prime is 1443423443447. The reversal of 1443423443431 is 1343443243441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1443423443431 - 2¹³ = 1443423435239 is a prime.

It is a super-2 number, since 2×1443423443431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1443423443401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721711721715 + 721711721716.

It is an arithmetic number, because the mean of its divisors is an integer number (721711721716).

Almost surely, 2^{1443423443431} is an apocalyptic number.

1443423443431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443423443431 is an equidigital number, since it uses as much as digits as its factorization.

1443423443431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 40.

Adding to 1443423443431 its reverse (1343443243441), we get a palindrome (2786866686872).

The spelling of 1443423443431 in words is "one trillion, four hundred forty-three billion, four hundred twenty-three million, four hundred forty-three thousand, four hundred thirty-one".