21041302111 has 8 divisors (see below), whose sum is σ = 21728344064. Its totient is φ = 20354778360.

The previous prime is 21041302091. The next prime is 21041302123. The reversal of 21041302111 is 11120314012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21041302111 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 (21041302811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46155 + ... + 210268.

It is an arithmetic number, because the mean of its divisors is an integer number (2716043008).

Almost surely, 2^21041302111 is an apocalyptic number.

21041302111 is a deficient number, since it is larger than the sum of its proper divisors (687041953).

21041302111 is a wasteful number, since it uses less digits than its factorization.

21041302111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259101.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21041302111 its reverse (11120314012), we get a palindrome (32161616123).

The spelling of 21041302111 in words is "twenty-one billion, forty-one million, three hundred two thousand, one hundred eleven".