143031113 has 2 divisors, whose sum is σ = 143031114. Its totient is φ = 143031112.

The previous prime is 143031071. The next prime is 143031127. The reversal of 143031113 is 311130341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142730809 + 300304 = 11947^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 143031113 - 2²⁰ = 141982537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143031091 and 143031100.

It is not a weakly prime, because it can be changed into another prime (143031143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71515556 + 71515557.

It is an arithmetic number, because the mean of its divisors is an integer number (71515557).

Almost surely, 2^143031113 is an apocalyptic number.

It is an amenable number.

143031113 is a deficient number, since it is larger than the sum of its proper divisors (1).

143031113 is an equidigital number, since it uses as much as digits as its factorization.

143031113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 143031113 is about 11959.5615722317. The cubic root of 143031113 is about 522.9700758056.

Adding to 143031113 its reverse (311130341), we get a palindrome (454161454).

The spelling of 143031113 in words is "one hundred forty-three million, thirty-one thousand, one hundred thirteen".