1143212044 has 24 divisors (see below), whose sum is σ = 2156773808. Its totient is φ = 527083200.

The previous prime is 1143212011. The next prime is 1143212069. The reversal of 1143212044 is 4402123411.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40819 + ... + 62869.

Almost surely, 2^1143212044 is an apocalyptic number.

It is an amenable number.

1143212044 is a deficient number, since it is larger than the sum of its proper divisors (1013561764).

1143212044 is a wasteful number, since it uses less digits than its factorization.

1143212044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23065 (or 23063 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1143212044 is about 33811.4188403859. The cubic root of 1143212044 is about 1045.6241302636.

Adding to 1143212044 its reverse (4402123411), we get a palindrome (5545335455).

The spelling of 1143212044 in words is "one billion, one hundred forty-three million, two hundred twelve thousand, forty-four".