3561044506121 has 4 divisors (see below), whose sum is σ = 3748467901200. Its totient is φ = 3373621111044.

The previous prime is 3561044506081. The next prime is 3561044506127. The reversal of 3561044506121 is 1216054401653.

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 3561044506121 - 2⁶ = 3561044506057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3561044506127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93711697511 + ... + 93711697548.

It is an arithmetic number, because the mean of its divisors is an integer number (937116975300).

Almost surely, 2^{3561044506121} is an apocalyptic number.

It is an amenable number.

3561044506121 is a deficient number, since it is larger than the sum of its proper divisors (187423395079).

3561044506121 is a wasteful number, since it uses less digits than its factorization.

3561044506121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187423395078.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 3561044506121 its reverse (1216054401653), we get a palindrome (4777098907774).

The spelling of 3561044506121 in words is "three trillion, five hundred sixty-one billion, forty-four million, five hundred six thousand, one hundred twenty-one".