21034410141111 has 8 divisors (see below), whose sum is σ = 28129102385904. Its totient is φ = 13981328995200.

The previous prime is 21034410141103. The next prime is 21034410141161. The reversal of 21034410141111 is 11114101443012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21034410141111 - 2³ = 21034410141103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21034410141161) 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, 10402773540 + ... + 10402775561.

It is an arithmetic number, because the mean of its divisors is an integer number (3516137798238).

Almost surely, 2^{21034410141111} is an apocalyptic number.

21034410141111 is a deficient number, since it is larger than the sum of its proper divisors (7094692244793).

21034410141111 is a wasteful number, since it uses less digits than its factorization.

21034410141111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20805549441.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 21034410141111 its reverse (11114101443012), we get a palindrome (32148511584123).

The spelling of 21034410141111 in words is "twenty-one trillion, thirty-four billion, four hundred ten million, one hundred forty-one thousand, one hundred eleven".