1321442123044 has 48 divisors (see below), whose sum is σ = 2419704596736. Its totient is φ = 630793068800.

The previous prime is 1321442123041. The next prime is 1321442123059. The reversal of 1321442123044 is 4403212441231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1321442122997 and 1321442123015.

It is not an unprimeable number, because it can be changed into a prime (1321442123041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 84803334 + ... + 84818914.

It is an arithmetic number, because the mean of its divisors is an integer number (50410512432).

Almost surely, 2^{1321442123044} is an apocalyptic number.

It is an amenable number.

1321442123044 is a deficient number, since it is larger than the sum of its proper divisors (1098262473692).

1321442123044 is a wasteful number, since it uses less digits than its factorization.

1321442123044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26676 (or 26674 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1321442123044 its reverse (4403212441231), we get a palindrome (5724654564275).

The spelling of 1321442123044 in words is "one trillion, three hundred twenty-one billion, four hundred forty-two million, one hundred twenty-three thousand, forty-four".