321130835972387 has 16 divisors (see below), whose sum is σ = 382982537229312. Its totient is φ = 263274292591200.

The previous prime is 321130835972363. The next prime is 321130835972411. The reversal of 321130835972387 is 783279538031123.

It is an interprime number because it is at equal distance from previous prime (321130835972363) and next prime (321130835972411).

It is a cyclic number.

It is not a de Polignac number, because 321130835972387 - 2¹⁶ = 321130835906851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321130835972087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46378223 + ... + 52850744.

It is an arithmetic number, because the mean of its divisors is an integer number (23936408576832).

Almost surely, 2^{321130835972387} is an apocalyptic number.

321130835972387 is a deficient number, since it is larger than the sum of its proper divisors (61851701256925).

321130835972387 is a wasteful number, since it uses less digits than its factorization.

321130835972387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99249098.

The product of its (nonzero) digits is 45722880, while the sum is 62.

The spelling of 321130835972387 in words is "three hundred twenty-one trillion, one hundred thirty billion, eight hundred thirty-five million, nine hundred seventy-two thousand, three hundred eighty-seven".