531200520031 has 2 divisors, whose sum is σ = 531200520032. Its totient is φ = 531200520030.

The previous prime is 531200520029. The next prime is 531200520079. The reversal of 531200520031 is 130025002135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531200520031 - 2¹ = 531200520029 is a prime.

It is a super-2 number, since 2×531200520031² (a number of 24 digits) contains 22 as substring.

Together with 531200520029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 531200519984 and 531200520011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531200520131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265600260015 + 265600260016.

It is an arithmetic number, because the mean of its divisors is an integer number (265600260016).

Almost surely, 2^531200520031 is an apocalyptic number.

531200520031 is a deficient number, since it is larger than the sum of its proper divisors (1).

531200520031 is an equidigital number, since it uses as much as digits as its factorization.

531200520031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 531200520031 its reverse (130025002135), we get a palindrome (661225522166).

The spelling of 531200520031 in words is "five hundred thirty-one billion, two hundred million, five hundred twenty thousand, thirty-one".