1011216587 has 2 divisors, whose sum is σ = 1011216588. Its totient is φ = 1011216586.

The previous prime is 1011216527. The next prime is 1011216589. The reversal of 1011216587 is 7856121101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011216587 - 2⁸ = 1011216331 is a prime.

Together with 1011216589, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1011216589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505608293 + 505608294.

It is an arithmetic number, because the mean of its divisors is an integer number (505608294).

Almost surely, 2^1011216587 is an apocalyptic number.

1011216587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011216587 is an equidigital number, since it uses as much as digits as its factorization.

1011216587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 32.

The square root of 1011216587 is about 31799.6318689384. The cubic root of 1011216587 is about 1003.7249697055.

Adding to 1011216587 its reverse (7856121101), we get a palindrome (8867337688).

The spelling of 1011216587 in words is "one billion, eleven million, two hundred sixteen thousand, five hundred eighty-seven".