2122020423 has 10 divisors (see below), whose sum is σ = 3169931864. Its totient is φ = 1414680228.

The previous prime is 2122020421. The next prime is 2122020443. The reversal of 2122020423 is 3240202212.

2122020423 is a `hidden beast` number, since 2 + 1 + 220 + 20 + 423 = 666.

It is not a de Polignac number, because 2122020423 - 2¹ = 2122020421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122020396 and 2122020405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122020421) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13098811 + ... + 13098972.

Almost surely, 2^2122020423 is an apocalyptic number.

2122020423 is a deficient number, since it is larger than the sum of its proper divisors (1047911441).

2122020423 is an equidigital number, since it uses as much as digits as its factorization.

2122020423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26197795 (or 26197786 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2122020423 is about 46065.3928996595. The cubic root of 2122020423 is about 1285.0396255198.

Adding to 2122020423 its reverse (3240202212), we get a palindrome (5362222635).

The spelling of 2122020423 in words is "two billion, one hundred twenty-two million, twenty thousand, four hundred twenty-three".