1321444312 has 8 divisors (see below), whose sum is σ = 2477708100. Its totient is φ = 660722152.

The previous prime is 1321444303. The next prime is 1321444343. The reversal of 1321444312 is 2134441231.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82590262 + ... + 82590277.

Almost surely, 2^1321444312 is an apocalyptic number.

It is an amenable number.

1321444312 is a deficient number, since it is larger than the sum of its proper divisors (1156263788).

1321444312 is a wasteful number, since it uses less digits than its factorization.

1321444312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165180545 (or 165180541 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1321444312 is about 36351.6755047137. The cubic root of 1321444312 is about 1097.3612541434.

Adding to 1321444312 its reverse (2134441231), we get a palindrome (3455885543).

The spelling of 1321444312 in words is "one billion, three hundred twenty-one million, four hundred forty-four thousand, three hundred twelve".