321221332103 has 8 divisors (see below), whose sum is σ = 374036699808. Its totient is φ = 270137615904.

The previous prime is 321221332093. The next prime is 321221332121. The reversal of 321221332103 is 301233122123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321221332103 - 2⁶ = 321221332039 is a prime.

It is a super-4 number, since 4×321221332103⁴ (a number of 47 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321221332403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432912476 + ... + 432913217.

It is an arithmetic number, because the mean of its divisors is an integer number (46754587476).

Almost surely, 2^321221332103 is an apocalyptic number.

321221332103 is a deficient number, since it is larger than the sum of its proper divisors (52815367705).

321221332103 is an equidigital number, since it uses as much as digits as its factorization.

321221332103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865825753.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 321221332103 its reverse (301233122123), we get a palindrome (622454454226).

The spelling of 321221332103 in words is "three hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, one hundred three".