1143213124 has 24 divisors (see below), whose sum is σ = 2058209048. Its totient is φ = 555206400.

The previous prime is 1143213121. The next prime is 1143213131. The reversal of 1143213124 is 4213123411.

It can be written as a sum of positive squares in 4 ways, for example, as 35521600 + 1107691524 = 5960^2 + 33282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1143213095 and 1143213104.

It is not an unprimeable number, because it can be changed into a prime (1143213121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84424 + ... + 97024.

Almost surely, 2^1143213124 is an apocalyptic number.

It is an amenable number.

1143213124 is a deficient number, since it is larger than the sum of its proper divisors (914995924).

1143213124 is a wasteful number, since it uses less digits than its factorization.

1143213124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13255 (or 13253 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1143213124 is about 33811.4348113179. The cubic root of 1143213124 is about 1045.6244595329.

Adding to 1143213124 its reverse (4213123411), we get a palindrome (5356336535).

The spelling of 1143213124 in words is "one billion, one hundred forty-three million, two hundred thirteen thousand, one hundred twenty-four".