52131031241 has 4 divisors (see below), whose sum is σ = 52149526800. Its totient is φ = 52112535684.

The previous prime is 52131031229. The next prime is 52131031283. The reversal of 52131031241 is 14213013125.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52131031241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52131031441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9243551 + ... + 9249188.

It is an arithmetic number, because the mean of its divisors is an integer number (13037381700).

Almost surely, 2^52131031241 is an apocalyptic number.

It is an amenable number.

52131031241 is a deficient number, since it is larger than the sum of its proper divisors (18495559).

52131031241 is a wasteful number, since it uses less digits than its factorization.

52131031241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18495558.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 52131031241 its reverse (14213013125), we get a palindrome (66344044366).

The spelling of 52131031241 in words is "fifty-two billion, one hundred thirty-one million, thirty-one thousand, two hundred forty-one".