1321302404112 has 80 divisors (see below), whose sum is σ = 3426731568000. Its totient is φ = 438710013952.

The previous prime is 1321302404087. The next prime is 1321302404117. The reversal of 1321302404112 is 2114042031231.

It is a super-2 number, since 2×1321302404112² (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 not an unprimeable number, because it can be changed into a prime (1321302404117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125486464 + ... + 125496992.

It is an arithmetic number, because the mean of its divisors is an integer number (42834144600).

Almost surely, 2^{1321302404112} is an apocalyptic number.

1321302404112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321302404112 is an abundant number, since it is smaller than the sum of its proper divisors (2105429163888).

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

1321302404112 is a wasteful number, since it uses less digits than its factorization.

1321302404112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20528 (or 20522 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1321302404112 its reverse (2114042031231), we get a palindrome (3435344435343).

The spelling of 1321302404112 in words is "one trillion, three hundred twenty-one billion, three hundred two million, four hundred four thousand, one hundred twelve".