21041331323111 has 12 divisors (see below), whose sum is σ = 23193593598336. Its totient is φ = 19074294645120.

The previous prime is 21041331323101. The next prime is 21041331323203. The reversal of 21041331323111 is 11132313314012.

It is not a de Polignac number, because 21041331323111 - 2¹⁰ = 21041331322087 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 (21041331323101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246267911 + ... + 246353336.

It is an arithmetic number, because the mean of its divisors is an integer number (1932799466528).

Almost surely, 2^{21041331323111} is an apocalyptic number.

21041331323111 is a deficient number, since it is larger than the sum of its proper divisors (2152262275225).

21041331323111 is a wasteful number, since it uses less digits than its factorization.

21041331323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492621622 (or 492621611 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 21041331323111 its reverse (11132313314012), we get a palindrome (32173644637123).

The spelling of 21041331323111 in words is "twenty-one trillion, forty-one billion, three hundred thirty-one million, three hundred twenty-three thousand, one hundred eleven".