321105403454 has 128 divisors (see below), whose sum is σ = 570802940928. Its totient is φ = 134022620160.

The previous prime is 321105403441. The next prime is 321105403471. The reversal of 321105403454 is 454304501123.

It is a super-2 number, since 2×321105403454² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321105403454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 310846922 + ... + 310847954.

It is an arithmetic number, because the mean of its divisors is an integer number (4459397976).

Almost surely, 2^321105403454 is an apocalyptic number.

321105403454 is a deficient number, since it is larger than the sum of its proper divisors (249697537474).

321105403454 is a wasteful number, since it uses less digits than its factorization.

321105403454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 321105403454 its reverse (454304501123), we get a palindrome (775409904577).

The spelling of 321105403454 in words is "three hundred twenty-one billion, one hundred five million, four hundred three thousand, four hundred fifty-four".