143211233117 has 2 divisors, whose sum is σ = 143211233118. Its totient is φ = 143211233116.

The previous prime is 143211233093. The next prime is 143211233161. The reversal of 143211233117 is 711332112341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134728638916 + 8482594201 = 367054^2 + 92101^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143211233117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143211233117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143211233197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71605616558 + 71605616559.

It is an arithmetic number, because the mean of its divisors is an integer number (71605616559).

Almost surely, 2^143211233117 is an apocalyptic number.

It is an amenable number.

143211233117 is a deficient number, since it is larger than the sum of its proper divisors (1).

143211233117 is an equidigital number, since it uses as much as digits as its factorization.

143211233117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

Adding to 143211233117 its reverse (711332112341), we get a palindrome (854543345458).

The spelling of 143211233117 in words is "one hundred forty-three billion, two hundred eleven million, two hundred thirty-three thousand, one hundred seventeen".