11021012087 has 2 divisors, whose sum is σ = 11021012088. Its totient is φ = 11021012086.

The previous prime is 11021012083. The next prime is 11021012113. The reversal of 11021012087 is 78021012011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11021012087 - 2² = 11021012083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021012083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510506043 + 5510506044.

It is an arithmetic number, because the mean of its divisors is an integer number (5510506044).

Almost surely, 2^11021012087 is an apocalyptic number.

11021012087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021012087 is an equidigital number, since it uses as much as digits as its factorization.

11021012087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 11021012087 its reverse (78021012011), we get a palindrome (89042024098).

The spelling of 11021012087 in words is "eleven billion, twenty-one million, twelve thousand, eighty-seven".