1321445253354 has 8 divisors (see below), whose sum is σ = 2642890506720. Its totient is φ = 440481751116.

The previous prime is 1321445253311. The next prime is 1321445253371. The reversal of 1321445253354 is 4533525441231.

It is a sphenic number, since it is the product of 3 distinct primes.

1321445253354 is an admirable number.

It is a super-2 number, since 2×1321445253354² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110120437774 + ... + 110120437785.

It is an arithmetic number, because the mean of its divisors is an integer number (330361313340).

Almost surely, 2^{1321445253354} is an apocalyptic number.

1321445253354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1321445253354 is a wasteful number, since it uses less digits than its factorization.

1321445253354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220240875564.

The product of its digits is 864000, while the sum is 42.

The spelling of 1321445253354 in words is "one trillion, three hundred twenty-one billion, four hundred forty-five million, two hundred fifty-three thousand, three hundred fifty-four".