2120018973 has 4 divisors (see below), whose sum is σ = 2826691968. Its totient is φ = 1413345980.

The previous prime is 2120018963. The next prime is 2120019029. The reversal of 2120018973 is 3798100212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2120018973 - 2¹⁴ = 2120002589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120018963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353336493 + ... + 353336498.

It is an arithmetic number, because the mean of its divisors is an integer number (706672992).

Almost surely, 2^2120018973 is an apocalyptic number.

It is an amenable number.

2120018973 is a deficient number, since it is larger than the sum of its proper divisors (706672995).

2120018973 is an equidigital number, since it uses as much as digits as its factorization.

2120018973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706672994.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2120018973 is about 46043.6637660384. The cubic root of 2120018973 is about 1284.6354899835.

The spelling of 2120018973 in words is "two billion, one hundred twenty million, eighteen thousand, nine hundred seventy-three".