1343021312 has 36 divisors (see below), whose sum is σ = 2684344320. Its totient is φ = 670622208.

The previous prime is 1343021311. The next prime is 1343021353. The reversal of 1343021312 is 2131203431.

It is not an unprimeable number, because it can be changed into a prime (1343021311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217889 + ... + 223967.

It is an arithmetic number, because the mean of its divisors is an integer number (74565120).

Almost surely, 2^1343021312 is an apocalyptic number.

It is an amenable number.

1343021312 is a deficient number, since it is larger than the sum of its proper divisors (1341323008).

1343021312 is an frugal number, since it uses more digits than its factorization.

1343021312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958 (or 6944 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1343021312 is about 36647.2551768888. The cubic root of 1343021312 is about 1103.3017358648.

Adding to 1343021312 its reverse (2131203431), we get a palindrome (3474224743).

The spelling of 1343021312 in words is "one billion, three hundred forty-three million, twenty-one thousand, three hundred twelve".