2120238989 has 8 divisors (see below), whose sum is σ = 2329872768. Its totient is φ = 1913419360.

The previous prime is 2120238983. The next prime is 2120239003. The reversal of 2120238989 is 9898320212.

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 2120238989 - 2⁴ = 2120238973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120238983) 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, 701957 + ... + 704970.

It is an arithmetic number, because the mean of its divisors is an integer number (291234096).

Almost surely, 2^2120238989 is an apocalyptic number.

It is an amenable number.

2120238989 is a deficient number, since it is larger than the sum of its proper divisors (209633779).

2120238989 is a wasteful number, since it uses less digits than its factorization.

2120238989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407075.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 2120238989 is about 46046.0529144464. The cubic root of 2120238989 is about 1284.6799283570.

The spelling of 2120238989 in words is "two billion, one hundred twenty million, two hundred thirty-eight thousand, nine hundred eighty-nine".