505201288231 has 2 divisors, whose sum is σ = 505201288232. Its totient is φ = 505201288230.

The previous prime is 505201288211. The next prime is 505201288261. The reversal of 505201288231 is 132882102505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505201288231 - 2⁷ = 505201288103 is a prime.

It is a super-2 number, since 2×505201288231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505201288201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252600644115 + 252600644116.

It is an arithmetic number, because the mean of its divisors is an integer number (252600644116).

Almost surely, 2^505201288231 is an apocalyptic number.

505201288231 is a deficient number, since it is larger than the sum of its proper divisors (1).

505201288231 is an equidigital number, since it uses as much as digits as its factorization.

505201288231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 505201288231 in words is "five hundred five billion, two hundred one million, two hundred eighty-eight thousand, two hundred thirty-one".