1002013213 has 4 divisors (see below), whose sum is σ = 1002314880. Its totient is φ = 1001711548.

The previous prime is 1002013211. The next prime is 1002013231. The reversal of 1002013213 is 3123102001.

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 an emirpimes, since its reverse is a distinct semiprime: 3123102001 = 1657 ⋅1884793.

It is a cyclic number.

It is not a de Polignac number, because 1002013213 - 2¹ = 1002013211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002013193 and 1002013202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002013211) 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, 145795 + ... + 152512.

It is an arithmetic number, because the mean of its divisors is an integer number (250578720).

Almost surely, 2^1002013213 is an apocalyptic number.

It is an amenable number.

1002013213 is a deficient number, since it is larger than the sum of its proper divisors (301667).

1002013213 is an equidigital number, since it uses as much as digits as its factorization.

1002013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301666.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1002013213 is about 31654.5922892714. The cubic root of 1002013213 is about 1000.6706211667.

Adding to 1002013213 its reverse (3123102001), we get a palindrome (4125115214).

The spelling of 1002013213 in words is "one billion, two million, thirteen thousand, two hundred thirteen".