1321588143912 has 32 divisors (see below), whose sum is σ = 3317679794880. Its totient is φ = 438701456640.

The previous prime is 1321588143899. The next prime is 1321588143917. The reversal of 1321588143912 is 2193418851231.

It is a happy number.

It is a super-3 number, since 3×1321588143912³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1321588143917) 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, 114239388 + ... + 114250955.

It is an arithmetic number, because the mean of its divisors is an integer number (103677493590).

Almost surely, 2^{1321588143912} is an apocalyptic number.

1321588143912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321588143912 is an abundant number, since it is smaller than the sum of its proper divisors (1996091650968).

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

1321588143912 is a wasteful number, since it uses less digits than its factorization.

1321588143912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228490593 (or 228490589 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The spelling of 1321588143912 in words is "one trillion, three hundred twenty-one billion, five hundred eighty-eight million, one hundred forty-three thousand, nine hundred twelve".