320321221222113 has 24 divisors (see below), whose sum is σ = 465149659411008. Its totient is φ = 212412224842272.

The previous prime is 320321221222109. The next prime is 320321221222147. The reversal of 320321221222113 is 311222122123023.

320321221222113 is a `hidden beast` number, since 3 + 2 + 0 + 3 + 212 + 212 + 221 + 13 = 666.

It is not a de Polignac number, because 320321221222113 - 2² = 320321221222109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320321221222153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69491445 + ... + 73957442.

It is an arithmetic number, because the mean of its divisors is an integer number (19381235808792).

Almost surely, 2^{320321221222113} is an apocalyptic number.

It is an amenable number.

320321221222113 is a deficient number, since it is larger than the sum of its proper divisors (144828438188895).

320321221222113 is a wasteful number, since it uses less digits than its factorization.

320321221222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143450213 (or 143450210 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 320321221222113 its reverse (311222122123023), we get a palindrome (631543343345136).

The spelling of 320321221222113 in words is "three hundred twenty trillion, three hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred thirteen".