2120213023 has 4 divisors (see below), whose sum is σ = 2120661088. Its totient is φ = 2119764960.

The previous prime is 2120212999. The next prime is 2120213027. The reversal of 2120213023 is 3203120212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120213023 - 2¹³ = 2120204831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120212988 and 2120213006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120213027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216858 + ... + 226423.

It is an arithmetic number, because the mean of its divisors is an integer number (530165272).

Almost surely, 2^2120213023 is an apocalyptic number.

2120213023 is a deficient number, since it is larger than the sum of its proper divisors (448065).

2120213023 is an equidigital number, since it uses as much as digits as its factorization.

2120213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448064.

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

The square root of 2120213023 is about 46045.7709567339. The cubic root of 2120213023 is about 1284.6746839584.

Adding to 2120213023 its reverse (3203120212), we get a palindrome (5323333235).

It can be divided in two parts, 21202 and 13023, that added together give a square (34225 = 185²).

The spelling of 2120213023 in words is "two billion, one hundred twenty million, two hundred thirteen thousand, twenty-three".