323000021143 has 2 divisors, whose sum is σ = 323000021144. Its totient is φ = 323000021142.

The previous prime is 323000021087. The next prime is 323000021159. The reversal of 323000021143 is 341120000323.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323000021143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 323000021143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323007021143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161500010571 + 161500010572.

It is an arithmetic number, because the mean of its divisors is an integer number (161500010572).

Almost surely, 2^323000021143 is an apocalyptic number.

323000021143 is a deficient number, since it is larger than the sum of its proper divisors (1).

323000021143 is an equidigital number, since it uses as much as digits as its factorization.

323000021143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 323000021143 its reverse (341120000323), we get a palindrome (664120021466).

The spelling of 323000021143 in words is "three hundred twenty-three billion, twenty-one thousand, one hundred forty-three".