505111210012142 has 4 divisors (see below), whose sum is σ = 757666815018216. Its totient is φ = 252555605006070.

The previous prime is 505111210012139. The next prime is 505111210012151. The reversal of 505111210012142 is 241210012111505.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126277802503034 + ... + 126277802503037.

It is an arithmetic number, because the mean of its divisors is an integer number (189416703754554).

Almost surely, 2^{505111210012142} is an apocalyptic number.

505111210012142 is a deficient number, since it is larger than the sum of its proper divisors (252555605006074).

505111210012142 is a wasteful number, since it uses less digits than its factorization.

505111210012142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252555605006073.

The product of its (nonzero) digits is 800, while the sum is 26.

Adding to 505111210012142 its reverse (241210012111505), we get a palindrome (746321222123647).

The spelling of 505111210012142 in words is "five hundred five trillion, one hundred eleven billion, two hundred ten million, twelve thousand, one hundred forty-two".