321043040435 has 32 divisors (see below), whose sum is σ = 422321376960. Its totient is φ = 232837056000.

The previous prime is 321043040399. The next prime is 321043040467. The reversal of 321043040435 is 534040340123.

It is not a de Polignac number, because 321043040435 - 2³² = 316748073139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321043040398 and 321043040407.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4029485 + ... + 4108385.

It is an arithmetic number, because the mean of its divisors is an integer number (13197543030).

Almost surely, 2^321043040435 is an apocalyptic number.

321043040435 is a deficient number, since it is larger than the sum of its proper divisors (101278336525).

321043040435 is a wasteful number, since it uses less digits than its factorization.

321043040435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80039.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 321043040435 its reverse (534040340123), we get a palindrome (855083380558).

The spelling of 321043040435 in words is "three hundred twenty-one billion, forty-three million, forty thousand, four hundred thirty-five".