143245320423203 has 4 divisors (see below), whose sum is σ = 143711917558440. Its totient is φ = 142778723287968.

The previous prime is 143245320423197. The next prime is 143245320423263. The reversal of 143245320423203 is 302324023542341.

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 143245320423203 - 2³² = 143241025455907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143245320423263) 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, 233298567158 + ... + 233298567771.

It is an arithmetic number, because the mean of its divisors is an integer number (35927979389610).

Almost surely, 2^{143245320423203} is an apocalyptic number.

143245320423203 is a deficient number, since it is larger than the sum of its proper divisors (466597135237).

143245320423203 is an equidigital number, since it uses as much as digits as its factorization.

143245320423203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466597135236.

The product of its (nonzero) digits is 414720, while the sum is 38.

Adding to 143245320423203 its reverse (302324023542341), we get a palindrome (445569343965544).

The spelling of 143245320423203 in words is "one hundred forty-three trillion, two hundred forty-five billion, three hundred twenty million, four hundred twenty-three thousand, two hundred three".