1321113233112 has 64 divisors (see below), whose sum is σ = 3417994476000. Its totient is φ = 425021313024.

The previous prime is 1321113233087. The next prime is 1321113233177. The reversal of 1321113233112 is 2113323111231.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1438714 + ... + 2170742.

Almost surely, 2^{1321113233112} is an apocalyptic number.

1321113233112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321113233112 is an abundant number, since it is smaller than the sum of its proper divisors (2096881242888).

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

1321113233112 is a wasteful number, since it uses less digits than its factorization.

1321113233112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734660 (or 734656 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

Adding to 1321113233112 its reverse (2113323111231), we get a palindrome (3434436344343).

The spelling of 1321113233112 in words is "one trillion, three hundred twenty-one billion, one hundred thirteen million, two hundred thirty-three thousand, one hundred twelve".