201031311487 has 2 divisors, whose sum is σ = 201031311488. Its totient is φ = 201031311486.

The previous prime is 201031311433. The next prime is 201031311511. The reversal of 201031311487 is 784113130102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201031311487 - 2⁷ = 201031311359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201031312487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100515655743 + 100515655744.

It is an arithmetic number, because the mean of its divisors is an integer number (100515655744).

Almost surely, 2^201031311487 is an apocalyptic number.

201031311487 is a deficient number, since it is larger than the sum of its proper divisors (1).

201031311487 is an equidigital number, since it uses as much as digits as its factorization.

201031311487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

Adding to 201031311487 its reverse (784113130102), we get a palindrome (985144441589).

The spelling of 201031311487 in words is "two hundred one billion, thirty-one million, three hundred eleven thousand, four hundred eighty-seven".