21230100311 has 8 divisors (see below), whose sum is σ = 24317745024. Its totient is φ = 18156148920.

The previous prime is 21230100301. The next prime is 21230100373. The reversal of 21230100311 is 11300103212.

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

It is not a de Polignac number, because 21230100311 - 2¹⁰ = 21230099287 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 (21230100301) 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, 3420005 + ... + 3426206.

It is an arithmetic number, because the mean of its divisors is an integer number (3039718128).

Almost surely, 2^21230100311 is an apocalyptic number.

21230100311 is a deficient number, since it is larger than the sum of its proper divisors (3087644713).

21230100311 is an equidigital number, since it uses as much as digits as its factorization.

21230100311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846661.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21230100311 its reverse (11300103212), we get a palindrome (32530203523).

The spelling of 21230100311 in words is "twenty-one billion, two hundred thirty million, one hundred thousand, three hundred eleven".