321040344235 has 16 divisors (see below), whose sum is σ = 415323881280. Its totient is φ = 236823960960.

The previous prime is 321040344221. The next prime is 321040344263. The reversal of 321040344235 is 532443040123.

It is a happy number.

It is not a de Polignac number, because 321040344235 - 2⁵ = 321040344203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321040344197 and 321040344206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2563215 + ... + 2685544.

It is an arithmetic number, because the mean of its divisors is an integer number (25957742580).

Almost surely, 2^321040344235 is an apocalyptic number.

321040344235 is a deficient number, since it is larger than the sum of its proper divisors (94283537045).

321040344235 is a wasteful number, since it uses less digits than its factorization.

321040344235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249718.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 321040344235 its reverse (532443040123), we get a palindrome (853483384358).

The spelling of 321040344235 in words is "three hundred twenty-one billion, forty million, three hundred forty-four thousand, two hundred thirty-five".