21101411011 has 8 divisors (see below), whose sum is σ = 21418893504. Its totient is φ = 20784003240.

The previous prime is 21101410991. The next prime is 21101411017. The reversal of 21101411011 is 11011410112.

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

It is a cyclic number.

It is not a de Polignac number, because 21101411011 - 2²⁷ = 20967193283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21101410982 and 21101411000.

It is not an unprimeable number, because it can be changed into a prime (21101411017) 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, 853656 + ... + 878026.

It is an arithmetic number, because the mean of its divisors is an integer number (2677361688).

Almost surely, 2^21101411011 is an apocalyptic number.

21101411011 is a deficient number, since it is larger than the sum of its proper divisors (317482493).

21101411011 is a wasteful number, since it uses less digits than its factorization.

21101411011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37361.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21101411011 its reverse (11011410112), we get a palindrome (32112821123).

The spelling of 21101411011 in words is "twenty-one billion, one hundred one million, four hundred eleven thousand, eleven".