5121561131683 has 16 divisors (see below), whose sum is σ = 5262287536800. Its totient is φ = 4981602545920.

The previous prime is 5121561131669. The next prime is 5121561131711. The reversal of 5121561131683 is 3861311651215.

It is not a de Polignac number, because 5121561131683 - 2⁵ = 5121561131651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5121561131383) 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, 27617313 + ... + 27802141.

It is an arithmetic number, because the mean of its divisors is an integer number (328892971050).

Almost surely, 2^{5121561131683} is an apocalyptic number.

5121561131683 is a deficient number, since it is larger than the sum of its proper divisors (140726405117).

5121561131683 is a wasteful number, since it uses less digits than its factorization.

5121561131683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186902.

The product of its digits is 129600, while the sum is 43.

Adding to 5121561131683 its reverse (3861311651215), we get a palindrome (8982872782898).

The spelling of 5121561131683 in words is "five trillion, one hundred twenty-one billion, five hundred sixty-one million, one hundred thirty-one thousand, six hundred eighty-three".