21130010011 has 8 divisors (see below), whose sum is σ = 23123639664. Its totient is φ = 19148500320.

The previous prime is 21130009993. The next prime is 21130010021. The reversal of 21130010011 is 11001003112.

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 21130010011 - 2¹⁹ = 21129485723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21130010011.

It is not an unprimeable number, because it can be changed into a prime (21130010021) 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, 3026340 + ... + 3033313.

It is an arithmetic number, because the mean of its divisors is an integer number (2890454958).

Almost surely, 2^21130010011 is an apocalyptic number.

21130010011 is a deficient number, since it is larger than the sum of its proper divisors (1993629653).

21130010011 is a wasteful number, since it uses less digits than its factorization.

21130010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059981.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 21130010011 its reverse (11001003112), we get a palindrome (32131013123).

The spelling of 21130010011 in words is "twenty-one billion, one hundred thirty million, ten thousand, eleven".