1321532235413 has 8 divisors (see below), whose sum is σ = 1423367667456. Its totient is φ = 1219722390000.

The previous prime is 1321532235403. The next prime is 1321532235433. The reversal of 1321532235413 is 3145322351231.

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 1321532235413 - 2¹⁶ = 1321532169877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321532235403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6289313 + ... + 6496038.

It is an arithmetic number, because the mean of its divisors is an integer number (177920958432).

Almost surely, 2^{1321532235413} is an apocalyptic number.

1321532235413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1321532235413 is a deficient number, since it is larger than the sum of its proper divisors (101835432043).

1321532235413 is a wasteful number, since it uses less digits than its factorization.

1321532235413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12793315.

The product of its digits is 64800, while the sum is 35.

Adding to 1321532235413 its reverse (3145322351231), we get a palindrome (4466854586644).

The spelling of 1321532235413 in words is "one trillion, three hundred twenty-one billion, five hundred thirty-two million, two hundred thirty-five thousand, four hundred thirteen".