505212045131 has 8 divisors (see below), whose sum is σ = 512145377520. Its totient is φ = 498279053952.

The previous prime is 505212045127. The next prime is 505212045181. The reversal of 505212045131 is 131540212505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505212045131 - 2² = 505212045127 is a prime.

It is a super-2 number, since 2×505212045131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505212045094 and 505212045103.

It is not an unprimeable number, because it can be changed into a prime (505212045181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4807556 + ... + 4911518.

It is an arithmetic number, because the mean of its divisors is an integer number (64018172190).

Almost surely, 2^505212045131 is an apocalyptic number.

505212045131 is a deficient number, since it is larger than the sum of its proper divisors (6933332389).

505212045131 is a wasteful number, since it uses less digits than its factorization.

505212045131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170605.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 505212045131 its reverse (131540212505), we get a palindrome (636752257636).

The spelling of 505212045131 in words is "five hundred five billion, two hundred twelve million, forty-five thousand, one hundred thirty-one".