321054133505 has 32 divisors (see below), whose sum is σ = 466378041600. Its totient is φ = 207123517440.

The previous prime is 321054133501. The next prime is 321054133511. The reversal of 321054133505 is 505331450123.

It is not a de Polignac number, because 321054133505 - 2² = 321054133501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321054133501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1505945 + ... + 1705865.

It is an arithmetic number, because the mean of its divisors is an integer number (14574313800).

Almost surely, 2^321054133505 is an apocalyptic number.

321054133505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

321054133505 is a deficient number, since it is larger than the sum of its proper divisors (145323908095).

321054133505 is a wasteful number, since it uses less digits than its factorization.

321054133505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202649.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 321054133505 its reverse (505331450123), we get a palindrome (826385583628).

The spelling of 321054133505 in words is "three hundred twenty-one billion, fifty-four million, one hundred thirty-three thousand, five hundred five".