241221511231311 has 16 divisors (see below), whose sum is σ = 347334166609920. Its totient is φ = 148030513847520.

The previous prime is 241221511231307. The next prime is 241221511231367. The reversal of 241221511231311 is 113132115122142.

It is a happy number.

It is not a de Polignac number, because 241221511231311 - 2² = 241221511231307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241221511231391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8614424655 + ... + 8614452656.

It is an arithmetic number, because the mean of its divisors is an integer number (21708385413120).

Almost surely, 2^{241221511231311} is an apocalyptic number.

241221511231311 is a deficient number, since it is larger than the sum of its proper divisors (106112655378609).

241221511231311 is a wasteful number, since it uses less digits than its factorization.

241221511231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17228877686.

The product of its digits is 2880, while the sum is 30.

Adding to 241221511231311 its reverse (113132115122142), we get a palindrome (354353626353453).

The spelling of 241221511231311 in words is "two hundred forty-one trillion, two hundred twenty-one billion, five hundred eleven million, two hundred thirty-one thousand, three hundred eleven".