11313101232221 has 16 divisors (see below), whose sum is σ = 11417718607680. Its totient is φ = 11208771999360.

The previous prime is 11313101232187. The next prime is 11313101232253. The reversal of 11313101232221 is 12223210131311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11313101232221 - 2¹⁸ = 11313100970077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313101232271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276319970 + ... + 276360908.

It is an arithmetic number, because the mean of its divisors is an integer number (713607412980).

Almost surely, 2^{11313101232221} is an apocalyptic number.

It is an amenable number.

11313101232221 is a deficient number, since it is larger than the sum of its proper divisors (104617375459).

11313101232221 is a wasteful number, since it uses less digits than its factorization.

11313101232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44396.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11313101232221 its reverse (12223210131311), we get a palindrome (23536311363532).

The spelling of 11313101232221 in words is "eleven trillion, three hundred thirteen billion, one hundred one million, two hundred thirty-two thousand, two hundred twenty-one".