1323111213012 has 24 divisors (see below), whose sum is σ = 3087689858176. Its totient is φ = 440975590848.

The previous prime is 1323111212993. The next prime is 1323111213041. The reversal of 1323111213012 is 2103121113231.

It is a super-2 number, since 2×1323111213012² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1323111213012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7595308 + ... + 7767555.

Almost surely, 2^{1323111213012} is an apocalyptic number.

1323111213012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323111213012 is an abundant number, since it is smaller than the sum of its proper divisors (1764578645164).

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

1323111213012 is a wasteful number, since it uses less digits than its factorization.

1323111213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15370047 (or 15370045 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1323111213012 its reverse (2103121113231), we get a palindrome (3426232326243).

The spelling of 1323111213012 in words is "one trillion, three hundred twenty-three billion, one hundred eleven million, two hundred thirteen thousand, twelve".