1002443101 has 4 divisors (see below), whose sum is σ = 1093574304. Its totient is φ = 911311900.

The previous prime is 1002443093. The next prime is 1002443129. The reversal of 1002443101 is 1013442001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1002443101 - 2³ = 1002443093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002443161) 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, 45565585 + ... + 45565606.

It is an arithmetic number, because the mean of its divisors is an integer number (273393576).

Almost surely, 2^1002443101 is an apocalyptic number.

1002443101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002443101 is a deficient number, since it is larger than the sum of its proper divisors (91131203).

1002443101 is an equidigital number, since it uses as much as digits as its factorization.

1002443101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91131202.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1002443101 is about 31661.3818555034. The cubic root of 1002443101 is about 1000.8137047051.

Adding to 1002443101 its reverse (1013442001), we get a palindrome (2015885102).

The spelling of 1002443101 in words is "one billion, two million, four hundred forty-three thousand, one hundred one".