1320331403112 has 32 divisors (see below), whose sum is σ = 3305188960800. Its totient is φ = 439529073984.

The previous prime is 1320331403099. The next prime is 1320331403119. The reversal of 1320331403112 is 2113041330231.

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 (1320331403119) 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, 36318562 + ... + 36354897.

It is an arithmetic number, because the mean of its divisors is an integer number (103287155025).

Almost surely, 2^{1320331403112} is an apocalyptic number.

1320331403112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1320331403112 is an abundant number, since it is smaller than the sum of its proper divisors (1984857557688).

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

1320331403112 is a wasteful number, since it uses less digits than its factorization.

1320331403112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72674225 (or 72674221 counting only the distinct ones).

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

Adding to 1320331403112 its reverse (2113041330231), we get a palindrome (3433372733343).

The spelling of 1320331403112 in words is "one trillion, three hundred twenty billion, three hundred thirty-one million, four hundred three thousand, one hundred twelve".