21301230000311 has 4 divisors (see below), whose sum is σ = 21307545221592. Its totient is φ = 21294914779032.

The previous prime is 21301230000277. The next prime is 21301230000319. The reversal of 21301230000311 is 11300003210312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21301230000311 - 2⁶ = 21301230000247 is a prime.

It is a super-2 number, since 2×21301230000311² (a number of 27 digits) contains 22 as substring.

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 21301230000311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301230000319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3157605581 + ... + 3157612326.

It is an arithmetic number, because the mean of its divisors is an integer number (5326886305398).

Almost surely, 2^{21301230000311} is an apocalyptic number.

21301230000311 is a deficient number, since it is larger than the sum of its proper divisors (6315221281).

21301230000311 is an equidigital number, since it uses as much as digits as its factorization.

21301230000311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315221280.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21301230000311 its reverse (11300003210312), we get a palindrome (32601233210623).

The spelling of 21301230000311 in words is "twenty-one trillion, three hundred one billion, two hundred thirty million, three hundred eleven", and thus it is an aban number.