1143012213 has 12 divisors (see below), whose sum is σ = 1886877408. Its totient is φ = 653149800.

The previous prime is 1143012193. The next prime is 1143012217. The reversal of 1143012213 is 3122103411.

1143012213 is a `hidden beast` number, since 11 + 430 + 1 + 221 + 3 = 666.

It is not a de Polignac number, because 1143012213 - 2⁵ = 1143012181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143012217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9071463 + ... + 9071588.

It is an arithmetic number, because the mean of its divisors is an integer number (157239784).

Almost surely, 2^1143012213 is an apocalyptic number.

It is an amenable number.

1143012213 is a deficient number, since it is larger than the sum of its proper divisors (743865195).

1143012213 is a wasteful number, since it uses less digits than its factorization.

1143012213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18143064 (or 18143061 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1143012213 is about 33808.4636296889. The cubic root of 1143012213 is about 1045.5632024324.

Adding to 1143012213 its reverse (3122103411), we get a palindrome (4265115624).

The spelling of 1143012213 in words is "one billion, one hundred forty-three million, twelve thousand, two hundred thirteen".