21041101311 has 16 divisors (see below), whose sum is σ = 28381766400. Its totient is φ = 13864443840.

The previous prime is 21041101273. The next prime is 21041101357. The reversal of 21041101311 is 11310114012.

It is not a de Polignac number, because 21041101311 - 2¹⁸ = 21040839167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21041101811) 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, 95640 + ... + 226338.

It is an arithmetic number, because the mean of its divisors is an integer number (1773860400).

Almost surely, 2^21041101311 is an apocalyptic number.

21041101311 is a deficient number, since it is larger than the sum of its proper divisors (7340665089).

21041101311 is a wasteful number, since it uses less digits than its factorization.

21041101311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131326.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 21041101311 its reverse (11310114012), we get a palindrome (32351215323).

The spelling of 21041101311 in words is "twenty-one billion, forty-one million, one hundred one thousand, three hundred eleven".