50661430121 has 8 divisors (see below), whose sum is σ = 53332678080. Its totient is φ = 47990667888.

The previous prime is 50661430109. The next prime is 50661430133. The reversal of 50661430121 is 12103416605.

It is a happy number.

50661430121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (50661430109) and next prime (50661430133).

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 50661430121 - 2¹⁰ = 50661429097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50661430151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103355 + ... + 334671.

It is an arithmetic number, because the mean of its divisors is an integer number (6666584760).

Almost surely, 2^50661430121 is an apocalyptic number.

It is an amenable number.

50661430121 is a deficient number, since it is larger than the sum of its proper divisors (2671247959).

50661430121 is a wasteful number, since it uses less digits than its factorization.

50661430121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242863.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 50661430121 its reverse (12103416605), we get a palindrome (62764846726).

The spelling of 50661430121 in words is "fifty billion, six hundred sixty-one million, four hundred thirty thousand, one hundred twenty-one".