1223230311311 has 8 divisors (see below), whose sum is σ = 1242533101344. Its totient is φ = 1203996337920.

The previous prime is 1223230311299. The next prime is 1223230311341. The reversal of 1223230311311 is 1131130323221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223230311311 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 (1223230311341) 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, 17168330 + ... + 17239431.

It is an arithmetic number, because the mean of its divisors is an integer number (155316637668).

Almost surely, 2^{1223230311311} is an apocalyptic number.

1223230311311 is a deficient number, since it is larger than the sum of its proper divisors (19302790033).

1223230311311 is an equidigital number, since it uses as much as digits as its factorization.

1223230311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34408321.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1223230311311 its reverse (1131130323221), we get a palindrome (2354360634532).

The spelling of 1223230311311 in words is "one trillion, two hundred twenty-three billion, two hundred thirty million, three hundred eleven thousand, three hundred eleven".