2120321023 has 8 divisors (see below), whose sum is σ = 2146340768. Its totient is φ = 2094405984.

The previous prime is 2120321003. The next prime is 2120321041. The reversal of 2120321023 is 3201230212.

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-2120321023 is a prime.

It is a super-2 number, since 2×2120321023² = 8991522481151533058, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 2120320988 and 2120321006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120321003) 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, 14965 + ... + 66817.

It is an arithmetic number, because the mean of its divisors is an integer number (268292596).

Almost surely, 2^2120321023 is an apocalyptic number.

2120321023 is a deficient number, since it is larger than the sum of its proper divisors (26019745).

2120321023 is a wasteful number, since it uses less digits than its factorization.

2120321023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52353.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2120321023 is about 46046.9436879366. The cubic root of 2120321023 is about 1284.6964966267.

Adding to 2120321023 its reverse (3201230212), we get a palindrome (5321551235).

The spelling of 2120321023 in words is "two billion, one hundred twenty million, three hundred twenty-one thousand, twenty-three".