321043040434 has 16 divisors (see below), whose sum is σ = 481936244760. Its totient is φ = 160397677440.

The previous prime is 321043040399. The next prime is 321043040467. The reversal of 321043040434 is 434040340123.

It can be written as a sum of positive squares in 4 ways, for example, as 321041226025 + 1814409 = 566605^2 + 1347^2 .

It is a super-2 number, since 2×321043040434² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15857182 + ... + 15877414.

Almost surely, 2^321043040434 is an apocalyptic number.

321043040434 is a deficient number, since it is larger than the sum of its proper divisors (160893204326).

321043040434 is a wasteful number, since it uses less digits than its factorization.

321043040434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25965.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 321043040434 its reverse (434040340123), we get a palindrome (755083380557).

The spelling of 321043040434 in words is "three hundred twenty-one billion, forty-three million, forty thousand, four hundred thirty-four".