1011143244 has 24 divisors (see below), whose sum is σ = 2435442688. Its totient is φ = 326175120.

The previous prime is 1011143183. The next prime is 1011143249. The reversal of 1011143244 is 4423411101.

It is a self number, because there is not a number n which added to its sum of digits gives 1011143244.

It is not an unprimeable number, because it can be changed into a prime (1011143249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358692 + ... + 1359435.

Almost surely, 2^1011143244 is an apocalyptic number.

It is an amenable number.

1011143244 is an abundant number, since it is smaller than the sum of its proper divisors (1424299444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011143244 is a wasteful number, since it uses less digits than its factorization.

1011143244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718165 (or 2718163 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1011143244 is about 31798.4786428533. The cubic root of 1011143244 is about 1003.7007025732.

Adding to 1011143244 its reverse (4423411101), we get a palindrome (5434554345).

The spelling of 1011143244 in words is "one billion, eleven million, one hundred forty-three thousand, two hundred forty-four".