21311411224102 has 16 divisors (see below), whose sum is σ = 32880022837200. Its totient is φ = 10353971561472.

The previous prime is 21311411224097. The next prime is 21311411224109. The reversal of 21311411224102 is 20142211411312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21311411224109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641970727 + ... + 642003922.

It is an arithmetic number, because the mean of its divisors is an integer number (2055001427325).

Almost surely, 2^{21311411224102} is an apocalyptic number.

21311411224102 is a deficient number, since it is larger than the sum of its proper divisors (11568611613098).

21311411224102 is a wasteful number, since it uses less digits than its factorization.

21311411224102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283974887.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 21311411224102 its reverse (20142211411312), we get a palindrome (41453622635414).

The spelling of 21311411224102 in words is "twenty-one trillion, three hundred eleven billion, four hundred eleven million, two hundred twenty-four thousand, one hundred two".