321620026123 has 8 divisors (see below), whose sum is σ = 350985689136. Its totient is φ = 292275609600.

The previous prime is 321620026111. The next prime is 321620026129.

321620026123 is nontrivially palindromic in base 10.

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 321620026123 - 2¹³ = 321620017931 is a prime.

It is a super-2 number, since 2×321620026123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321620026091 and 321620026100.

It is not an unprimeable number, because it can be changed into a prime (321620026129) 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, 5279958 + ... + 5340523.

It is an arithmetic number, because the mean of its divisors is an integer number (43873211142).

Almost surely, 2^321620026123 is an apocalyptic number.

321620026123 is a deficient number, since it is larger than the sum of its proper divisors (29365663013).

321620026123 is a wasteful number, since it uses less digits than its factorization.

321620026123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10623245.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 321620026123 in words is "three hundred twenty-one billion, six hundred twenty million, twenty-six thousand, one hundred twenty-three".