561711210011 has 16 divisors (see below), whose sum is σ = 683646796224. Its totient is φ = 450525825024.

The previous prime is 561711209993. The next prime is 561711210089. The reversal of 561711210011 is 110012117165.

It is a cyclic number.

It is not a de Polignac number, because 561711210011 - 2⁶ = 561711209947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561711210211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13621790 + ... + 13662963.

It is an arithmetic number, because the mean of its divisors is an integer number (42727924764).

Almost surely, 2^561711210011 is an apocalyptic number.

561711210011 is a deficient number, since it is larger than the sum of its proper divisors (121935586213).

561711210011 is a wasteful number, since it uses less digits than its factorization.

561711210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27284950.

The product of its (nonzero) digits is 420, while the sum is 26.

Adding to 561711210011 its reverse (110012117165), we get a palindrome (671723327176).

The spelling of 561711210011 in words is "five hundred sixty-one billion, seven hundred eleven million, two hundred ten thousand, eleven".