321240112233403 has 16 divisors (see below), whose sum is σ = 357092420256000. Its totient is φ = 286547938411680.

The previous prime is 321240112233361. The next prime is 321240112233409. The reversal of 321240112233403 is 304332211042123.

It is not a de Polignac number, because 321240112233403 - 2²¹ = 321240110136251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321240112233409) 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, 1300475353 + ... + 1300722346.

It is an arithmetic number, because the mean of its divisors is an integer number (22318276266000).

Almost surely, 2^{321240112233403} is an apocalyptic number.

321240112233403 is a deficient number, since it is larger than the sum of its proper divisors (35852308022597).

321240112233403 is a wasteful number, since it uses less digits than its factorization.

321240112233403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601197922.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 321240112233403 its reverse (304332211042123), we get a palindrome (625572323275526).

The spelling of 321240112233403 in words is "three hundred twenty-one trillion, two hundred forty billion, one hundred twelve million, two hundred thirty-three thousand, four hundred three".