321240100243243 has 8 divisors (see below), whose sum is σ = 344266711424928. Its totient is φ = 298968459920064.

The previous prime is 321240100243189. The next prime is 321240100243261. The reversal of 321240100243243 is 342342001042123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321240100243243 - 2⁹ = 321240100242731 is a prime.

It is a super-2 number, since 2×321240100243243² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321240100243943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188742713746 + ... + 188742715447.

It is an arithmetic number, because the mean of its divisors is an integer number (43033338928116).

Almost surely, 2^{321240100243243} is an apocalyptic number.

321240100243243 is a deficient number, since it is larger than the sum of its proper divisors (23026611181685).

321240100243243 is a wasteful number, since it uses less digits than its factorization.

321240100243243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377485429253.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 321240100243243 its reverse (342342001042123), we get a palindrome (663582101285366).

The spelling of 321240100243243 in words is "three hundred twenty-one trillion, two hundred forty billion, one hundred million, two hundred forty-three thousand, two hundred forty-three".