1143213343 has 2 divisors, whose sum is σ = 1143213344. Its totient is φ = 1143213342.

The previous prime is 1143213317. The next prime is 1143213371. The reversal of 1143213343 is 3433123411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1143213343 - 2⁵ = 1143213311 is a prime.

It is a super-2 number, since 2×1143213343² = 2613873495226471298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143214343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571606671 + 571606672.

It is an arithmetic number, because the mean of its divisors is an integer number (571606672).

Almost surely, 2^1143213343 is an apocalyptic number.

1143213343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143213343 is an equidigital number, since it uses as much as digits as its factorization.

1143213343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

The square root of 1143213343 is about 33811.4380498671. The cubic root of 1143213343 is about 1045.6245263013.

Adding to 1143213343 its reverse (3433123411), we get a palindrome (4576336754).

The spelling of 1143213343 in words is "one billion, one hundred forty-three million, two hundred thirteen thousand, three hundred forty-three".