1321450455144 has 16 divisors (see below), whose sum is σ = 3303626137920. Its totient is φ = 440483485040.

The previous prime is 1321450455133. The next prime is 1321450455163. The reversal of 1321450455144 is 4415540541231.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27530217792 + ... + 27530217839.

It is an arithmetic number, because the mean of its divisors is an integer number (206476633620).

Almost surely, 2^{1321450455144} is an apocalyptic number.

It is an amenable number.

1321450455144 is an abundant number, since it is smaller than the sum of its proper divisors (1982175682776).

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

1321450455144 is a wasteful number, since it uses less digits than its factorization.

1321450455144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55060435640 (or 55060435636 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 1321450455144 its reverse (4415540541231), we get a palindrome (5736990996375).

The spelling of 1321450455144 in words is "one trillion, three hundred twenty-one billion, four hundred fifty million, four hundred fifty-five thousand, one hundred forty-four".