501420342117 has 4 divisors (see below), whose sum is σ = 668560456160. Its totient is φ = 334280228076.

The previous prime is 501420342091. The next prime is 501420342119. The reversal of 501420342117 is 711243024105.

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 not a de Polignac number, because 501420342117 - 2⁶ = 501420342053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501420342119) 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, 83570057017 + ... + 83570057022.

It is an arithmetic number, because the mean of its divisors is an integer number (167140114040).

Almost surely, 2^501420342117 is an apocalyptic number.

It is an amenable number.

501420342117 is a deficient number, since it is larger than the sum of its proper divisors (167140114043).

501420342117 is a wasteful number, since it uses less digits than its factorization.

501420342117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167140114042.

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 501420342117 in words is "five hundred one billion, four hundred twenty million, three hundred forty-two thousand, one hundred seventeen".