1321302321232 has 40 divisors (see below), whose sum is σ = 2655287863200. Its totient is φ = 636186966912.

The previous prime is 1321302321221. The next prime is 1321302321263. The reversal of 1321302321232 is 2321232031231.

It is a junction number, because it is equal to n+sod(n) for n = 1321302321197 and 1321302321206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3580918 + ... + 3932629.

It is an arithmetic number, because the mean of its divisors is an integer number (66382196580).

Almost surely, 2^{1321302321232} is an apocalyptic number.

It is an amenable number.

1321302321232 is an abundant number, since it is smaller than the sum of its proper divisors (1333985541968).

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

1321302321232 is a wasteful number, since it uses less digits than its factorization.

1321302321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513963 (or 7513957 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1321302321232 its reverse (2321232031231), we get a palindrome (3642534352463).

The spelling of 1321302321232 in words is "one trillion, three hundred twenty-one billion, three hundred two million, three hundred twenty-one thousand, two hundred thirty-two".