11012301211 has 4 divisors (see below), whose sum is σ = 11064492424. Its totient is φ = 10960110000.

The previous prime is 11012301173. The next prime is 11012301241. The reversal of 11012301211 is 11210321011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11012301211 - 2¹¹ = 11012299163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012301191 and 11012301200.

It is not an unprimeable number, because it can be changed into a prime (11012301241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26095290 + ... + 26095711.

It is an arithmetic number, because the mean of its divisors is an integer number (2766123106).

Almost surely, 2^11012301211 is an apocalyptic number.

11012301211 is a deficient number, since it is larger than the sum of its proper divisors (52191213).

11012301211 is an equidigital number, since it uses as much as digits as its factorization.

11012301211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52191212.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11012301211 its reverse (11210321011), we get a palindrome (22222622222).

The spelling of 11012301211 in words is "eleven billion, twelve million, three hundred one thousand, two hundred eleven".