1443250040423 has 4 divisors (see below), whose sum is σ = 1443290775528. Its totient is φ = 1443209305320.

The previous prime is 1443250040249. The next prime is 1443250040513. The reversal of 1443250040423 is 3240400523441.

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-1443250040423 is a prime.

It is a super-2 number, since 2×1443250040423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1443250040423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443250040123) 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, 20314361 + ... + 20385282.

It is an arithmetic number, because the mean of its divisors is an integer number (360822693882).

Almost surely, 2^{1443250040423} is an apocalyptic number.

1443250040423 is a deficient number, since it is larger than the sum of its proper divisors (40735105).

1443250040423 is an equidigital number, since it uses as much as digits as its factorization.

1443250040423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40735104.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 1443250040423 its reverse (3240400523441), we get a palindrome (4683650563864).

The spelling of 1443250040423 in words is "one trillion, four hundred forty-three billion, two hundred fifty million, forty thousand, four hundred twenty-three".