505971123134 has 4 divisors (see below), whose sum is σ = 758956684704. Its totient is φ = 252985561566.

The previous prime is 505971123113. The next prime is 505971123187. The reversal of 505971123134 is 431321179505.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 505971123091 and 505971123100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126492780782 + ... + 126492780785.

It is an arithmetic number, because the mean of its divisors is an integer number (189739171176).

Almost surely, 2^505971123134 is an apocalyptic number.

505971123134 is a deficient number, since it is larger than the sum of its proper divisors (252985561570).

505971123134 is a wasteful number, since it uses less digits than its factorization.

505971123134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252985561569.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 505971123134 in words is "five hundred five billion, nine hundred seventy-one million, one hundred twenty-three thousand, one hundred thirty-four".