1013306530661 has 4 divisors (see below), whose sum is σ = 1013985237132. Its totient is φ = 1012627824192.

The previous prime is 1013306530633. The next prime is 1013306530669. The reversal of 1013306530661 is 1660356033101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 510917596225 + 502388934436 = 714785^2 + 708794^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013306530661 - 2²² = 1013302336357 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 (1013306530669) 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, 339350996 + ... + 339353981.

It is an arithmetic number, because the mean of its divisors is an integer number (253496309283).

Almost surely, 2^{1013306530661} is an apocalyptic number.

It is an amenable number.

1013306530661 is a deficient number, since it is larger than the sum of its proper divisors (678706471).

1013306530661 is an equidigital number, since it uses as much as digits as its factorization.

1013306530661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678706470.

The product of its (nonzero) digits is 29160, while the sum is 35.

The spelling of 1013306530661 in words is "one trillion, thirteen billion, three hundred six million, five hundred thirty thousand, six hundred sixty-one".