1143043117 has 2 divisors, whose sum is σ = 1143043118. Its totient is φ = 1143043116.

The previous prime is 1143043081. The next prime is 1143043133. The reversal of 1143043117 is 7113403411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 902762116 + 240281001 = 30046^2 + 15501^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143043117 - 2²³ = 1134654509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143043091 and 1143043100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143043147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571521558 + 571521559.

It is an arithmetic number, because the mean of its divisors is an integer number (571521559).

Almost surely, 2^1143043117 is an apocalyptic number.

It is an amenable number.

1143043117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143043117 is an equidigital number, since it uses as much as digits as its factorization.

1143043117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1143043117 is about 33808.9206719173. The cubic root of 1143043117 is about 1045.5726254271.

Adding to 1143043117 its reverse (7113403411), we get a palindrome (8256446528).

The spelling of 1143043117 in words is "one billion, one hundred forty-three million, forty-three thousand, one hundred seventeen".