321383648145 has 16 divisors (see below), whose sum is σ = 587672956800. Its totient is φ = 146918239104.

The previous prime is 321383648141. The next prime is 321383648171. The reversal of 321383648145 is 541846383123.

It is not a de Polignac number, because 321383648145 - 2² = 321383648141 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 321383648094 and 321383648103.

It is not an unprimeable number, because it can be changed into a prime (321383648141) 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, 1530398220 + ... + 1530398429.

It is an arithmetic number, because the mean of its divisors is an integer number (36729559800).

Almost surely, 2^321383648145 is an apocalyptic number.

321383648145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

321383648145 is a deficient number, since it is larger than the sum of its proper divisors (266289308655).

321383648145 is a wasteful number, since it uses less digits than its factorization.

321383648145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060796664.

The product of its digits is 1658880, while the sum is 48.

It can be divided in two parts, 321383 and 648145, that added together give a triangular number (969528 = T₁₃₉₂).

The spelling of 321383648145 in words is "three hundred twenty-one billion, three hundred eighty-three million, six hundred forty-eight thousand, one hundred forty-five".