501421230404141 has 4 divisors (see below), whose sum is σ = 501421912272000. Its totient is φ = 501420548536284.

The previous prime is 501421230404093. The next prime is 501421230404153. The reversal of 501421230404141 is 141404032124105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501421230404141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501421230404098 and 501421230404107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501421230004141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339829691 + ... + 341302008.

It is an arithmetic number, because the mean of its divisors is an integer number (125355478068000).

Almost surely, 2^{501421230404141} is an apocalyptic number.

It is an amenable number.

501421230404141 is a deficient number, since it is larger than the sum of its proper divisors (681867859).

501421230404141 is an equidigital number, since it uses as much as digits as its factorization.

501421230404141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681867858.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 501421230404141 its reverse (141404032124105), we get a palindrome (642825262528246).

The spelling of 501421230404141 in words is "five hundred one trillion, four hundred twenty-one billion, two hundred thirty million, four hundred four thousand, one hundred forty-one".