11321213101 has 16 divisors (see below), whose sum is σ = 12388147200. Its totient is φ = 10260630000.

The previous prime is 11321213083. The next prime is 11321213131. The reversal of 11321213101 is 10131212311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11321213101 - 2¹¹ = 11321211053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321213131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8582520 + ... + 8583838.

It is an arithmetic number, because the mean of its divisors is an integer number (774259200).

Almost surely, 2^11321213101 is an apocalyptic number.

11321213101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11321213101 is a deficient number, since it is larger than the sum of its proper divisors (1066934099).

11321213101 is a wasteful number, since it uses less digits than its factorization.

11321213101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11321213101 its reverse (10131212311), we get a palindrome (21452425412).

It can be divided in two parts, 11321 and 213101, that added together give a palindrome (224422).

The spelling of 11321213101 in words is "eleven billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred one".