11230313021 has 2 divisors, whose sum is σ = 11230313022. Its totient is φ = 11230313020.

The previous prime is 11230313011. The next prime is 11230313023. The reversal of 11230313021 is 12031303211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11140802500 + 89510521 = 105550^2 + 9461^2 .

It is an emirp because it is prime and its reverse (12031303211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11230313021 - 2¹⁸ = 11230050877 is a prime.

It is a super-2 number, since 2×11230313021² (a number of 21 digits) contains 22 as substring.

Together with 11230313023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11230313023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615156510 + 5615156511.

It is an arithmetic number, because the mean of its divisors is an integer number (5615156511).

Almost surely, 2^11230313021 is an apocalyptic number.

It is an amenable number.

11230313021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11230313021 is an equidigital number, since it uses as much as digits as its factorization.

11230313021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11230313021 its reverse (12031303211), we get a palindrome (23261616232).

It can be divided in two parts, 11 and 230313021, that added together give a palindrome (230313032).

The spelling of 11230313021 in words is "eleven billion, two hundred thirty million, three hundred thirteen thousand, twenty-one".