2320121021 has 8 divisors (see below), whose sum is σ = 2421694464. Its totient is φ = 2218605840.

The previous prime is 2320120961. The next prime is 2320121047. The reversal of 2320121021 is 1201210232.

It is a happy number.

2320121021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-2320121021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2320120987 and 2320121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320121051) 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, 79940 + ... + 105026.

It is an arithmetic number, because the mean of its divisors is an integer number (302711808).

Almost surely, 2^2320121021 is an apocalyptic number.

It is an amenable number.

2320121021 is a deficient number, since it is larger than the sum of its proper divisors (101573443).

2320121021 is a wasteful number, since it uses less digits than its factorization.

2320121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29131.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2320121021 is about 48167.6345796636. The cubic root of 2320121021 is about 1323.8442079068.

Adding to 2320121021 its reverse (1201210232), we get a palindrome (3521331253).

It can be divided in two parts, 2 and 320121021, that added together give a palindrome (320121023).

The spelling of 2320121021 in words is "two billion, three hundred twenty million, one hundred twenty-one thousand, twenty-one".