1012040443 has 4 divisors (see below), whose sum is σ = 1012109368. Its totient is φ = 1011971520.

The previous prime is 1012040441. The next prime is 1012040467. The reversal of 1012040443 is 3440402101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1012040443 - 2¹ = 1012040441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012040443.

It is not an unprimeable number, because it can be changed into a prime (1012040441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2646 + ... + 45067.

It is an arithmetic number, because the mean of its divisors is an integer number (253027342).

Almost surely, 2^1012040443 is an apocalyptic number.

1012040443 is a deficient number, since it is larger than the sum of its proper divisors (68925).

1012040443 is an equidigital number, since it uses as much as digits as its factorization.

1012040443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68924.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1012040443 is about 31812.5830922294. The cubic root of 1012040443 is about 1003.9974798617.

Adding to 1012040443 its reverse (3440402101), we get a palindrome (4452442544).

The spelling of 1012040443 in words is "one billion, twelve million, forty thousand, four hundred forty-three".