131121304513321 has 8 divisors (see below), whose sum is σ = 131318112196800. Its totient is φ = 130924587095280.

The previous prime is 131121304513319. The next prime is 131121304513351. The reversal of 131121304513321 is 123315403121131.

It is a happy number.

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 131121304513321 - 2¹ = 131121304513319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131121304513351) 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, 19658661 + ... + 25469698.

It is an arithmetic number, because the mean of its divisors is an integer number (16414764024600).

Almost surely, 2^{131121304513321} is an apocalyptic number.

It is an amenable number.

131121304513321 is a deficient number, since it is larger than the sum of its proper divisors (196807683479).

131121304513321 is an equidigital number, since it uses as much as digits as its factorization.

131121304513321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45132719.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 131121304513321 its reverse (123315403121131), we get a palindrome (254436707634452).

The spelling of 131121304513321 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, three hundred four million, five hundred thirteen thousand, three hundred twenty-one".