321004612143 has 10 divisors (see below), whose sum is σ = 479525408384. Its totient is φ = 214003074708.

The previous prime is 321004612079. The next prime is 321004612163. The reversal of 321004612143 is 341216400123.

It is a happy number.

321004612143 is a `hidden beast` number, since 3 + 2 + 1 + 0 + 0 + 4 + 612 + 1 + 43 = 666.

It is not a de Polignac number, because 321004612143 - 2⁶ = 321004612079 is a prime.

It is a super-2 number, since 2×321004612143² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321004612163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1981509871 + ... + 1981510032.

Almost surely, 2^321004612143 is an apocalyptic number.

321004612143 is a deficient number, since it is larger than the sum of its proper divisors (158520796241).

321004612143 is an equidigital number, since it uses as much as digits as its factorization.

321004612143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963019915 (or 3963019906 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 321004612143 in words is "three hundred twenty-one billion, four million, six hundred twelve thousand, one hundred forty-three".