1311120333312 has 80 divisors (see below), whose sum is σ = 3493189716192. Its totient is φ = 437004677120.

The previous prime is 1311120333311. The next prime is 1311120333317. The reversal of 1311120333312 is 2133330211131.

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

It is not an unprimeable number, because it can be changed into a prime (1311120333311) 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, 24643123 + ... + 24696269.

Almost surely, 2^{1311120333312} is an apocalyptic number.

1311120333312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311120333312 is an abundant number, since it is smaller than the sum of its proper divisors (2182069382880).

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

1311120333312 is an equidigital number, since it uses as much as digits as its factorization.

1311120333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69229 (or 69213 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1311120333312 its reverse (2133330211131), we get a palindrome (3444450544443).

The spelling of 1311120333312 in words is "one trillion, three hundred eleven billion, one hundred twenty million, three hundred thirty-three thousand, three hundred twelve".