1321214844 has 12 divisors (see below), whose sum is σ = 3082834664. Its totient is φ = 440404944.

The previous prime is 1321214827. The next prime is 1321214849. The reversal of 1321214844 is 4484121231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321214849) 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, 55050607 + ... + 55050630.

Almost surely, 2^1321214844 is an apocalyptic number.

It is an amenable number.

1321214844 is an abundant number, since it is smaller than the sum of its proper divisors (1761619820).

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

1321214844 is a wasteful number, since it uses less digits than its factorization.

1321214844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110101244 (or 110101242 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 1321214844 is about 36348.5191445264. The cubic root of 1321214844 is about 1097.2977317619.

The spelling of 1321214844 in words is "one billion, three hundred twenty-one million, two hundred fourteen thousand, eight hundred forty-four".