1321632671371 has 4 divisors (see below), whose sum is σ = 1321724421232. Its totient is φ = 1321540921512.

The previous prime is 1321632671369. The next prime is 1321632671407. The reversal of 1321632671371 is 1731762361231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1321632671371 - 2¹ = 1321632671369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321632671971) 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, 45853320 + ... + 45882133.

It is an arithmetic number, because the mean of its divisors is an integer number (330431105308).

Almost surely, 2^{1321632671371} is an apocalyptic number.

1321632671371 is a deficient number, since it is larger than the sum of its proper divisors (91749861).

1321632671371 is an equidigital number, since it uses as much as digits as its factorization.

1321632671371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91749860.

The product of its digits is 190512, while the sum is 43.

The spelling of 1321632671371 in words is "one trillion, three hundred twenty-one billion, six hundred thirty-two million, six hundred seventy-one thousand, three hundred seventy-one".