1002204013 has 4 divisors (see below), whose sum is σ = 1002282400. Its totient is φ = 1002125628.

The previous prime is 1002203989. The next prime is 1002204019. The reversal of 1002204013 is 3104022001.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3104022001 = 19 ⋅163369579.

It is a cyclic number.

It is not a de Polignac number, because 1002204013 - 2⁵ = 1002203981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002203984 and 1002204002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002204019) 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, 15063 + ... + 47236.

It is an arithmetic number, because the mean of its divisors is an integer number (250570600).

Almost surely, 2^1002204013 is an apocalyptic number.

It is an amenable number.

1002204013 is a deficient number, since it is larger than the sum of its proper divisors (78387).

1002204013 is an equidigital number, since it uses as much as digits as its factorization.

1002204013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78386.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1002204013 is about 31657.6059265384. The cubic root of 1002204013 is about 1000.7341319184.

Adding to 1002204013 its reverse (3104022001), we get a palindrome (4106226014).

The spelling of 1002204013 in words is "one billion, two million, two hundred four thousand, thirteen".