143217323 has 2 divisors, whose sum is σ = 143217324. Its totient is φ = 143217322.

The previous prime is 143217317. The next prime is 143217359. The reversal of 143217323 is 323712341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143217323 - 2¹² = 143213227 is a prime.

It is a super-2 number, since 2×143217323² = 41022403214572658, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p_8083610 and since 143217323 and 8083610 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 143217292 and 143217301.

It is not a weakly prime, because it can be changed into another prime (143217523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71608661 + 71608662.

It is an arithmetic number, because the mean of its divisors is an integer number (71608662).

Almost surely, 2^143217323 is an apocalyptic number.

143217323 is a deficient number, since it is larger than the sum of its proper divisors (1).

143217323 is an equidigital number, since it uses as much as digits as its factorization.

143217323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 143217323 is about 11967.3440244693. The cubic root of 143217323 is about 523.1969262816.

Adding to 143217323 its reverse (323712341), we get a palindrome (466929664).

The spelling of 143217323 in words is "one hundred forty-three million, two hundred seventeen thousand, three hundred twenty-three".