320011242143 has 4 divisors (see below), whose sum is σ = 324062017440. Its totient is φ = 315960466848.

The previous prime is 320011242139. The next prime is 320011242149. The reversal of 320011242143 is 341242110023.

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 320011242143 - 2² = 320011242139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320011242149) 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, 2025387530 + ... + 2025387687.

It is an arithmetic number, because the mean of its divisors is an integer number (81015504360).

Almost surely, 2^320011242143 is an apocalyptic number.

320011242143 is a deficient number, since it is larger than the sum of its proper divisors (4050775297).

320011242143 is an equidigital number, since it uses as much as digits as its factorization.

320011242143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050775296.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 320011242143 its reverse (341242110023), we get a palindrome (661253352166).

The spelling of 320011242143 in words is "three hundred twenty billion, eleven million, two hundred forty-two thousand, one hundred forty-three".