1302120132321 has 4 divisors (see below), whose sum is σ = 1736160176432. Its totient is φ = 868080088212.

The previous prime is 1302120132227. The next prime is 1302120132323. The reversal of 1302120132321 is 1232310212031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1302120132321 - 2¹⁷ = 1302120001249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1302120132323) 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, 217020022051 + ... + 217020022056.

It is an arithmetic number, because the mean of its divisors is an integer number (434040044108).

Almost surely, 2^{1302120132321} is an apocalyptic number.

It is an amenable number.

1302120132321 is a deficient number, since it is larger than the sum of its proper divisors (434040044111).

1302120132321 is an equidigital number, since it uses as much as digits as its factorization.

1302120132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434040044110.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1302120132321 its reverse (1232310212031), we get a palindrome (2534430344352).

The spelling of 1302120132321 in words is "one trillion, three hundred two billion, one hundred twenty million, one hundred thirty-two thousand, three hundred twenty-one".