50121012133 has 8 divisors (see below), whose sum is σ = 54460862720. Its totient is φ = 45951351840.

The previous prime is 50121012083. The next prime is 50121012169. The reversal of 50121012133 is 33121012105.

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 50121012133 - 2⁹ = 50121011621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50121012133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50121010133) 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, 42546960 + ... + 42548137.

It is an arithmetic number, because the mean of its divisors is an integer number (6807607840).

Almost surely, 2^50121012133 is an apocalyptic number.

It is an amenable number.

50121012133 is a deficient number, since it is larger than the sum of its proper divisors (4339850587).

50121012133 is a wasteful number, since it uses less digits than its factorization.

50121012133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85095147.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 50121012133 its reverse (33121012105), we get a palindrome (83242024238).

The spelling of 50121012133 in words is "fifty billion, one hundred twenty-one million, twelve thousand, one hundred thirty-three".