1000321613 has 4 divisors (see below), whose sum is σ = 1000611648. Its totient is φ = 1000031580.

The previous prime is 1000321607. The next prime is 1000321717. The reversal of 1000321613 is 3161230001.

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 1000321613 - 2¹⁶ = 1000256077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000321591 and 1000321600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000321213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139781 + ... + 146762.

It is an arithmetic number, because the mean of its divisors is an integer number (250152912).

Almost surely, 2^1000321613 is an apocalyptic number.

It is an amenable number.

1000321613 is a deficient number, since it is larger than the sum of its proper divisors (290035).

1000321613 is an equidigital number, since it uses as much as digits as its factorization.

1000321613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290034.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1000321613 is about 31627.8613409127. The cubic root of 1000321613 is about 1000.1071928426.

Adding to 1000321613 its reverse (3161230001), we get a palindrome (4161551614).

The spelling of 1000321613 in words is "one billion, three hundred twenty-one thousand, six hundred thirteen".