1112021011 has 2 divisors, whose sum is σ = 1112021012.
Its totient is φ = 1112021010.
The previous prime is 1112020981. The next prime is 1112021021. The reversal of 1112021011 is 1101202111.
Adding to 1112021011 its reverse (1101202111), we get a palindrome (2213223122).
It can be divided in two parts, 11120 and 21011, that added together give a triangular number (32131 = T253).
It is an a-pointer prime, because the next prime (1112021021) can be obtained adding 1112021011 to its sum of digits (10).
It is a strong prime.
It is an emirp because it is prime and its reverse (1101202111) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1112021011 - 213 = 1112012819 is a prime.
It is not a weakly prime, because it can be changed into another prime (1112021021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556010505 + 556010506.
It is an arithmetic number, because the mean of its divisors is an integer number (556010506).
Almost surely, 21112021011 is an apocalyptic number.
1112021011 is a deficient number, since it is larger than the sum of its proper divisors (1).
1112021011 is an equidigital number, since it uses as much as digits as its factorization.
1112021011 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 4, while the sum is 10.
The square root of 1112021011 is about 33346.9790385876.
The cubic root of 1112021011 is about 1036.0268185616.
The spelling of 1112021011 in words is "one billion, one hundred twelve million, twenty-one thousand, eleven".