21041004314111 has 4 divisors (see below), whose sum is σ = 21043221266424. Its totient is φ = 21038787361800.

The previous prime is 21041004314063. The next prime is 21041004314137. The reversal of 21041004314111 is 11141340014012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21041004314111 - 2³⁴ = 21023824444927 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 (21041004310111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108461920 + ... + 1108480901.

It is an arithmetic number, because the mean of its divisors is an integer number (5260805316606).

Almost surely, 2^{21041004314111} is an apocalyptic number.

21041004314111 is a deficient number, since it is larger than the sum of its proper divisors (2216952313).

21041004314111 is an equidigital number, since it uses as much as digits as its factorization.

21041004314111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216952312.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 21041004314111 its reverse (11141340014012), we get a palindrome (32182344328123).

The spelling of 21041004314111 in words is "twenty-one trillion, forty-one billion, four million, three hundred fourteen thousand, one hundred eleven".