531311234032987 has 2 divisors, whose sum is σ = 531311234032988. Its totient is φ = 531311234032986.

The previous prime is 531311234032961. The next prime is 531311234033033. The reversal of 531311234032987 is 789230432113135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531311234032987 - 2²³ = 531311225644379 is a prime.

It is not a weakly prime, because it can be changed into another prime (531311234032907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265655617016493 + 265655617016494.

It is an arithmetic number, because the mean of its divisors is an integer number (265655617016494).

Almost surely, 2^{531311234032987} is an apocalyptic number.

531311234032987 is a deficient number, since it is larger than the sum of its proper divisors (1).

531311234032987 is an equidigital number, since it uses as much as digits as its factorization.

531311234032987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 531311234032987 in words is "five hundred thirty-one trillion, three hundred eleven billion, two hundred thirty-four million, thirty-two thousand, nine hundred eighty-seven".