1321330140204 has 12 divisors (see below), whose sum is σ = 3083103660504. Its totient is φ = 440443380064.

The previous prime is 1321330140199. The next prime is 1321330140209. The reversal of 1321330140204 is 4020410331231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1321330140199) and next prime (1321330140209).

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

It is not an unprimeable number, because it can be changed into a prime (1321330140209) 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, 55055422497 + ... + 55055422520.

It is an arithmetic number, because the mean of its divisors is an integer number (256925305042).

Almost surely, 2^{1321330140204} is an apocalyptic number.

It is an amenable number.

1321330140204 is an abundant number, since it is smaller than the sum of its proper divisors (1761773520300).

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

1321330140204 is a wasteful number, since it uses less digits than its factorization.

1321330140204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110110845024 (or 110110845022 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1321330140204 its reverse (4020410331231), we get a palindrome (5341740471435).

The spelling of 1321330140204 in words is "one trillion, three hundred twenty-one billion, three hundred thirty million, one hundred forty thousand, two hundred four".