320121221123 has 8 divisors (see below), whose sum is σ = 357344619456. Its totient is φ = 284251401000.

The previous prime is 320121221107. The next prime is 320121221129. The reversal of 320121221123 is 321122121023.

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 320121221123 - 2⁴ = 320121221107 is a prime.

It is a super-2 number, since 2×320121221123² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320121221095 and 320121221104.

It is not an unprimeable number, because it can be changed into a prime (320121221129) 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, 338394053 + ... + 338394998.

It is an arithmetic number, because the mean of its divisors is an integer number (44668077432).

Almost surely, 2^320121221123 is an apocalyptic number.

320121221123 is a deficient number, since it is larger than the sum of its proper divisors (37223398333).

320121221123 is a wasteful number, since it uses less digits than its factorization.

320121221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676789105.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 320121221123 its reverse (321122121023), we get a palindrome (641243342146).

The spelling of 320121221123 in words is "three hundred twenty billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-three".