21110130311 has 8 divisors (see below), whose sum is σ = 21174610464. Its totient is φ = 21045749760.

The previous prime is 21110130289. The next prime is 21110130313. The reversal of 21110130311 is 11303101112.

It is a happy number.

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-21110130311 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 (21110130313) 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, 411191 + ... + 459671.

It is an arithmetic number, because the mean of its divisors is an integer number (2646826308).

Almost surely, 2^21110130311 is an apocalyptic number.

21110130311 is a deficient number, since it is larger than the sum of its proper divisors (64480153).

21110130311 is an equidigital number, since it uses as much as digits as its factorization.

21110130311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49801.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 21110130311 its reverse (11303101112), we get a palindrome (32413231423).

The spelling of 21110130311 in words is "twenty-one billion, one hundred ten million, one hundred thirty thousand, three hundred eleven".