1532143023443 has 4 divisors (see below), whose sum is σ = 1612782129960. Its totient is φ = 1451503916928.

The previous prime is 1532143023431. The next prime is 1532143023491. The reversal of 1532143023443 is 3443203412351.

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 1532143023443 - 2²⁸ = 1531874587987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1532173023443) 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, 40319553230 + ... + 40319553267.

It is an arithmetic number, because the mean of its divisors is an integer number (403195532490).

Almost surely, 2^{1532143023443} is an apocalyptic number.

1532143023443 is a deficient number, since it is larger than the sum of its proper divisors (80639106517).

1532143023443 is an equidigital number, since it uses as much as digits as its factorization.

1532143023443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80639106516.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 1532143023443 its reverse (3443203412351), we get a palindrome (4975346435794).

The spelling of 1532143023443 in words is "one trillion, five hundred thirty-two billion, one hundred forty-three million, twenty-three thousand, four hundred forty-three".