531121550241 has 8 divisors (see below), whose sum is σ = 727301582464. Its totient is φ = 344511275760.

The previous prime is 531121550231. The next prime is 531121550303. The reversal of 531121550241 is 142055121135.

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

It is not a de Polignac number, because 531121550241 - 2⁹ = 531121549729 is a prime.

It is a super-2 number, since 2×531121550241² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 531121550199 and 531121550208.

It is not an unprimeable number, because it can be changed into a prime (531121550231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392439305 + ... + 2392439526.

It is an arithmetic number, because the mean of its divisors is an integer number (90912697808).

Almost surely, 2^531121550241 is an apocalyptic number.

It is an amenable number.

531121550241 is a deficient number, since it is larger than the sum of its proper divisors (196180032223).

531121550241 is a wasteful number, since it uses less digits than its factorization.

531121550241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4784878871.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 531121550241 its reverse (142055121135), we get a palindrome (673176671376).

The spelling of 531121550241 in words is "five hundred thirty-one billion, one hundred twenty-one million, five hundred fifty thousand, two hundred forty-one".