143111113 has 2 divisors, whose sum is σ = 143111114. Its totient is φ = 143111112.

The previous prime is 143111071. The next prime is 143111131. The reversal of 143111113 is 311111341.

143111113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (143111131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142754704 + 356409 = 11948^2 + 597^2 .

It is a cyclic number.

It is not a de Polignac number, because 143111113 - 2¹⁷ = 142980041 is a prime.

It is not a weakly prime, because it can be changed into another prime (143111413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71555556 + 71555557.

It is an arithmetic number, because the mean of its divisors is an integer number (71555557).

Almost surely, 2^143111113 is an apocalyptic number.

It is an amenable number.

143111113 is a deficient number, since it is larger than the sum of its proper divisors (1).

143111113 is an equidigital number, since it uses as much as digits as its factorization.

143111113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 16.

The square root of 143111113 is about 11962.9057088987. The cubic root of 143111113 is about 523.0675599762.

Adding to 143111113 its reverse (311111341), we get a palindrome (454222454).

It can be divided in two parts, 1431 and 11113, that added together give a square (12544 = 112²).

The spelling of 143111113 in words is "one hundred forty-three million, one hundred eleven thousand, one hundred thirteen".