143320321323029 has 4 divisors (see below), whose sum is σ = 143339206601580. Its totient is φ = 143301436044480.

The previous prime is 143320321323019. The next prime is 143320321323059. The reversal of 143320321323029 is 920323123023341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1736262134929 + 141584059188100 = 1317673^2 + 11898910^2 .

It is a cyclic number.

It is not a de Polignac number, because 143320321323029 - 2²⁸ = 143320052887573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143320321322983 and 143320321323001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143320321323019) 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, 9442627892 + ... + 9442643069.

It is an arithmetic number, because the mean of its divisors is an integer number (35834801650395).

Almost surely, 2^{143320321323029} is an apocalyptic number.

It is an amenable number.

143320321323029 is a deficient number, since it is larger than the sum of its proper divisors (18885278551).

143320321323029 is an equidigital number, since it uses as much as digits as its factorization.

143320321323029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18885278550.

The product of its (nonzero) digits is 139968, while the sum is 38.

The spelling of 143320321323029 in words is "one hundred forty-three trillion, three hundred twenty billion, three hundred twenty-one million, three hundred twenty-three thousand, twenty-nine".