1321342401303 has 6 divisors (see below), whose sum is σ = 1908605690784. Its totient is φ = 880894934196.

The previous prime is 1321342401293. The next prime is 1321342401317. The reversal of 1321342401303 is 3031042431231.

It is a happy number.

1321342401303 is a `hidden beast` number, since 1 + 3 + 213 + 42 + 401 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 1321342401303 - 2³⁴ = 1304162532119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321342401503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73407911175 + ... + 73407911192.

It is an arithmetic number, because the mean of its divisors is an integer number (318100948464).

Almost surely, 2^{1321342401303} is an apocalyptic number.

1321342401303 is a deficient number, since it is larger than the sum of its proper divisors (587263289481).

1321342401303 is a wasteful number, since it uses less digits than its factorization.

1321342401303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146815822373 (or 146815822370 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1321342401303 its reverse (3031042431231), we get a palindrome (4352384832534).

The spelling of 1321342401303 in words is "one trillion, three hundred twenty-one billion, three hundred forty-two million, four hundred one thousand, three hundred three".