2113545613 has 8 divisors (see below), whose sum is σ = 2201794560. Its totient is φ = 2027044320.

The previous prime is 2113545611. The next prime is 2113545631. The reversal of 2113545613 is 3165453112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113545613 - 2¹ = 2113545611 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 (2113545611) 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 7 ways as a sum of consecutive naturals, for example, 434445 + ... + 439282.

It is an arithmetic number, because the mean of its divisors is an integer number (275224320).

Almost surely, 2^2113545613 is an apocalyptic number.

It is an amenable number.

2113545613 is a deficient number, since it is larger than the sum of its proper divisors (88248947).

2113545613 is an equidigital number, since it uses as much as digits as its factorization.

2113545613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873827.

The product of its digits is 10800, while the sum is 31.

The square root of 2113545613 is about 45973.3141398355. The cubic root of 2113545613 is about 1283.3266359052.

Adding to 2113545613 its reverse (3165453112), we get a palindrome (5278998725).

The spelling of 2113545613 in words is "two billion, one hundred thirteen million, five hundred forty-five thousand, six hundred thirteen".