1011240443 has 2 divisors, whose sum is σ = 1011240444. Its totient is φ = 1011240442.

The previous prime is 1011240431. The next prime is 1011240463. The reversal of 1011240443 is 3440421101.

It is an a-pointer prime, because the next prime (1011240463) can be obtained adding 1011240443 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011240443 - 2¹⁰ = 1011239419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011240463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505620221 + 505620222.

It is an arithmetic number, because the mean of its divisors is an integer number (505620222).

Almost surely, 2^1011240443 is an apocalyptic number.

1011240443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011240443 is an equidigital number, since it uses as much as digits as its factorization.

1011240443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1011240443 is about 31800.0069654080. The cubic root of 1011240443 is about 1003.7328627309.

Adding to 1011240443 its reverse (3440421101), we get a palindrome (4451661544).

The spelling of 1011240443 in words is "one billion, eleven million, two hundred forty thousand, four hundred forty-three".