3561311313 has 32 divisors (see below), whose sum is σ = 6035025920. Its totient is φ = 2033249040.

The previous prime is 3561311297. The next prime is 3561311357. The reversal of 3561311313 is 3131131653.

3561311313 is a `hidden beast` number, since 3 + 5 + 613 + 11 + 31 + 3 = 666.

It is not a de Polignac number, because 3561311313 - 2⁴ = 3561311297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3561315313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225006 + ... + 240312.

It is an arithmetic number, because the mean of its divisors is an integer number (188594560).

Almost surely, 2^3561311313 is an apocalyptic number.

It is an amenable number.

3561311313 is a deficient number, since it is larger than the sum of its proper divisors (2473714607).

3561311313 is a wasteful number, since it uses less digits than its factorization.

3561311313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16554 (or 16548 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 3561311313 is about 59676.7233768745. The cubic root of 3561311313 is about 1527.1087999179.

Adding to 3561311313 its reverse (3131131653), we get a palindrome (6692442966).

The spelling of 3561311313 in words is "three billion, five hundred sixty-one million, three hundred eleven thousand, three hundred thirteen".