1223230311312 has 20 divisors (see below), whose sum is σ = 3160011637680. Its totient is φ = 407743437088.

The previous prime is 1223230311299. The next prime is 1223230311341. The reversal of 1223230311312 is 2131130323221.

It is a super-2 number, since 2×1223230311312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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, 12741982362 + ... + 12741982457.

It is an arithmetic number, because the mean of its divisors is an integer number (158000581884).

Almost surely, 2^{1223230311312} is an apocalyptic number.

1223230311312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223230311312 is an abundant number, since it is smaller than the sum of its proper divisors (1936781326368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223230311312 is a wasteful number, since it uses less digits than its factorization.

1223230311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25483964830 (or 25483964824 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1223230311312 its reverse (2131130323221), we get a palindrome (3354360634533).

The spelling of 1223230311312 in words is "one trillion, two hundred twenty-three billion, two hundred thirty million, three hundred eleven thousand, three hundred twelve".