11231221012303 has 2 divisors, whose sum is σ = 11231221012304. Its totient is φ = 11231221012302.

The previous prime is 11231221012301. The next prime is 11231221012309. The reversal of 11231221012303 is 30321012213211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11231221012303 - 2¹ = 11231221012301 is a prime.

It is a super-2 number, since 2×11231221012303² (a number of 27 digits) contains 22 as substring.

Together with 11231221012301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231221012301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615610506151 + 5615610506152.

It is an arithmetic number, because the mean of its divisors is an integer number (5615610506152).

Almost surely, 2^{11231221012303} is an apocalyptic number.

11231221012303 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231221012303 is an equidigital number, since it uses as much as digits as its factorization.

11231221012303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11231221012303 its reverse (30321012213211), we get a palindrome (41552233225514).

The spelling of 11231221012303 in words is "eleven trillion, two hundred thirty-one billion, two hundred twenty-one million, twelve thousand, three hundred three".