1321300232121 has 8 divisors (see below), whose sum is σ = 1761879614560. Its totient is φ = 880793835552.

The previous prime is 1321300232107. The next prime is 1321300232167. The reversal of 1321300232121 is 1212320031231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1321300232121 - 2¹⁷ = 1321300101049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321300232821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18204211 + ... + 18276648.

It is an arithmetic number, because the mean of its divisors is an integer number (220234951820).

Almost surely, 2^{1321300232121} is an apocalyptic number.

It is an amenable number.

1321300232121 is a deficient number, since it is larger than the sum of its proper divisors (440579382439).

1321300232121 is a wasteful number, since it uses less digits than its factorization.

1321300232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36492935.

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

Adding to 1321300232121 its reverse (1212320031231), we get a palindrome (2533620263352).

The spelling of 1321300232121 in words is "one trillion, three hundred twenty-one billion, three hundred million, two hundred thirty-two thousand, one hundred twenty-one".