501211744141 has 16 divisors (see below), whose sum is σ = 534606912000. Its totient is φ = 468255414528.

The previous prime is 501211744021. The next prime is 501211744153. The reversal of 501211744141 is 141447112105.

It is a cyclic number.

It is not a de Polignac number, because 501211744141 - 2¹³ = 501211735949 is a prime.

It is a super-3 number, since 3×501211744141³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501211744171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3844300 + ... + 3972538.

It is an arithmetic number, because the mean of its divisors is an integer number (33412932000).

Almost surely, 2^501211744141 is an apocalyptic number.

It is an amenable number.

501211744141 is a deficient number, since it is larger than the sum of its proper divisors (33395167859).

501211744141 is a wasteful number, since it uses less digits than its factorization.

501211744141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129948.

The product of its (nonzero) digits is 4480, while the sum is 31.

Adding to 501211744141 its reverse (141447112105), we get a palindrome (642658856246).

The spelling of 501211744141 in words is "five hundred one billion, two hundred eleven million, seven hundred forty-four thousand, one hundred forty-one".