1321132101321 has 16 divisors (see below), whose sum is σ = 1763079906240. Its totient is φ = 879969699840.

The previous prime is 1321132101313. The next prime is 1321132101343. The reversal of 1321132101321 is 1231012311231.

It is not a de Polignac number, because 1321132101321 - 2³ = 1321132101313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321132101371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37309801 + ... + 37345193.

It is an arithmetic number, because the mean of its divisors is an integer number (110192494140).

Almost surely, 2^{1321132101321} is an apocalyptic number.

It is an amenable number.

1321132101321 is a deficient number, since it is larger than the sum of its proper divisors (441947804919).

1321132101321 is a wasteful number, since it uses less digits than its factorization.

1321132101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46136.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1321132101321 its reverse (1231012311231), we get a palindrome (2552144412552).

The spelling of 1321132101321 in words is "one trillion, three hundred twenty-one billion, one hundred thirty-two million, one hundred one thousand, three hundred twenty-one".