1321105255433 has 8 divisors (see below), whose sum is σ = 1398828584448. Its totient is φ = 1243383177024.

The previous prime is 1321105255397. The next prime is 1321105255439. The reversal of 1321105255433 is 3345525011231.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1321105255433 - 2⁶ = 1321105255369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321105255393 and 1321105255402.

It is not an unprimeable number, because it can be changed into a prime (1321105255439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2681660 + ... + 3135842.

It is an arithmetic number, because the mean of its divisors is an integer number (174853573056).

Almost surely, 2^{1321105255433} is an apocalyptic number.

It is an amenable number.

1321105255433 is a deficient number, since it is larger than the sum of its proper divisors (77723329015).

1321105255433 is a wasteful number, since it uses less digits than its factorization.

1321105255433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625303.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 1321105255433 in words is "one trillion, three hundred twenty-one billion, one hundred five million, two hundred fifty-five thousand, four hundred thirty-three".