1004331213 has 6 divisors (see below), whose sum is σ = 1450700654. Its totient is φ = 669554136.

The previous prime is 1004331199. The next prime is 1004331227. The reversal of 1004331213 is 3121334001.

It is an interprime number because it is at equal distance from previous prime (1004331199) and next prime (1004331227).

It can be written as a sum of positive squares in only one way, i.e., 722695689 + 281635524 = 26883^2 + 16782^2 .

It is not a de Polignac number, because 1004331213 - 2⁴ = 1004331197 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 (1004331283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55796170 + ... + 55796187.

Almost surely, 2^1004331213 is an apocalyptic number.

It is an amenable number.

1004331213 is a deficient number, since it is larger than the sum of its proper divisors (446369441).

1004331213 is a wasteful number, since it uses less digits than its factorization.

1004331213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111592363 (or 111592360 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1004331213 is about 31691.1850993301. The cubic root of 1004331213 is about 1001.4416582893.

Adding to 1004331213 its reverse (3121334001), we get a palindrome (4125665214).

The spelling of 1004331213 in words is "one billion, four million, three hundred thirty-one thousand, two hundred thirteen".