320121023 has 8 divisors (see below), whose sum is σ = 322500816. Its totient is φ = 317750400.

The previous prime is 320121017. The next prime is 320121047.

It is a happy number.

320121023 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 a de Polignac number, because none of the positive numbers 2^k-320121023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320120989 and 320121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320121073) 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, 77765 + ... + 81777.

It is an arithmetic number, because the mean of its divisors is an integer number (40312602).

Almost surely, 2^320121023 is an apocalyptic number.

320121023 is a deficient number, since it is larger than the sum of its proper divisors (2379793).

320121023 is a wasteful number, since it uses less digits than its factorization.

320121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 320121023 is about 17891.9261959131. The cubic root of 320121023 is about 684.0765954772.

The spelling of 320121023 in words is "three hundred twenty million, one hundred twenty-one thousand, twenty-three".