1002013043 has 4 divisors (see below), whose sum is σ = 1003680888. Its totient is φ = 1000345200.

The previous prime is 1002013037. The next prime is 1002013057. The reversal of 1002013043 is 3403102001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002013043 - 2²⁸ = 733577587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002013003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833021 + ... + 834222.

It is an arithmetic number, because the mean of its divisors is an integer number (250920222).

Almost surely, 2^1002013043 is an apocalyptic number.

1002013043 is a deficient number, since it is larger than the sum of its proper divisors (1667845).

1002013043 is an equidigital number, since it uses as much as digits as its factorization.

1002013043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667844.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1002013043 is about 31654.5896040369. The cubic root of 1002013043 is about 1000.6705645760.

Adding to 1002013043 its reverse (3403102001), we get a palindrome (4405115044).

The spelling of 1002013043 in words is "one billion, two million, thirteen thousand, forty-three".