1004311213 has 4 divisors (see below), whose sum is σ = 1004384700. Its totient is φ = 1004237728.

The previous prime is 1004311211. The next prime is 1004311219. The reversal of 1004311213 is 3121134001.

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 can be written as a sum of positive squares in 2 ways, for example, as 328987044 + 675324169 = 18138^2 + 25987^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004311213 - 2¹ = 1004311211 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 (1004311211) 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, 9520 + ... + 45817.

It is an arithmetic number, because the mean of its divisors is an integer number (251096175).

Almost surely, 2^1004311213 is an apocalyptic number.

It is an amenable number.

1004311213 is a deficient number, since it is larger than the sum of its proper divisors (73487).

1004311213 is an equidigital number, since it uses as much as digits as its factorization.

1004311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73486.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1004311213 is about 31690.8695526014. The cubic root of 1004311213 is about 1001.4350107591.

Adding to 1004311213 its reverse (3121134001), we get a palindrome (4125445214).

The spelling of 1004311213 in words is "one billion, four million, three hundred eleven thousand, two hundred thirteen".