1230311221333 has 4 divisors (see below), whose sum is σ = 1230332958720. Its totient is φ = 1230289483948.

The previous prime is 1230311221327. The next prime is 1230311221379. The reversal of 1230311221333 is 3331221130321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1230311221333 - 2⁵ = 1230311221301 is a prime.

It is a super-2 number, since 2×1230311221333² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230311221298 and 1230311221307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230311221303) 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 in 3 ways as a sum of consecutive naturals, for example, 10783573 + ... + 10897066.

It is an arithmetic number, because the mean of its divisors is an integer number (307583239680).

Almost surely, 2^{1230311221333} is an apocalyptic number.

It is an amenable number.

1230311221333 is a deficient number, since it is larger than the sum of its proper divisors (21737387).

1230311221333 is an equidigital number, since it uses as much as digits as its factorization.

1230311221333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21737386.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1230311221333 its reverse (3331221130321), we get a palindrome (4561532351654).

The spelling of 1230311221333 in words is "one trillion, two hundred thirty billion, three hundred eleven million, two hundred twenty-one thousand, three hundred thirty-three".