21130013321111 has 8 divisors (see below), whose sum is σ = 22715355866880. Its totient is φ = 19591994433528.

The previous prime is 21130013321101. The next prime is 21130013321143. The reversal of 21130013321111 is 11112331003112.

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 21130013321111 - 2¹⁴ = 21130013304727 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 (21130013321101) 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, 11830913621 + ... + 11830915406.

It is an arithmetic number, because the mean of its divisors is an integer number (2839419483360).

Almost surely, 2^{21130013321111} is an apocalyptic number.

21130013321111 is a deficient number, since it is larger than the sum of its proper divisors (1585342545769).

21130013321111 is a wasteful number, since it uses less digits than its factorization.

21130013321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23661829093.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 21130013321111 its reverse (11112331003112), we get a palindrome (32242344324223).

The spelling of 21130013321111 in words is "twenty-one trillion, one hundred thirty billion, thirteen million, three hundred twenty-one thousand, one hundred eleven".