1006511313 has 4 divisors (see below), whose sum is σ = 1342015088. Its totient is φ = 671007540.

The previous prime is 1006511309. The next prime is 1006511351. The reversal of 1006511313 is 3131156001.

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: 3131156001 = 3 ⋅1043718667.

It is not a de Polignac number, because 1006511313 - 2² = 1006511309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1006511313.

It is not an unprimeable number, because it can be changed into a prime (1006511213) 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, 167751883 + ... + 167751888.

It is an arithmetic number, because the mean of its divisors is an integer number (335503772).

Almost surely, 2^1006511313 is an apocalyptic number.

It is an amenable number.

1006511313 is a deficient number, since it is larger than the sum of its proper divisors (335503775).

1006511313 is an equidigital number, since it uses as much as digits as its factorization.

1006511313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335503774.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1006511313 is about 31725.5624536430. The cubic root of 1006511313 is about 1002.1657438342.

Adding to 1006511313 its reverse (3131156001), we get a palindrome (4137667314).

The spelling of 1006511313 in words is "one billion, six million, five hundred eleven thousand, three hundred thirteen".