2142420233 has 4 divisors (see below), whose sum is σ = 2162442960. Its totient is φ = 2122397508.

The previous prime is 2142420173. The next prime is 2142420253. The reversal of 2142420233 is 3320242412.

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 2142420233 - 2²⁴ = 2125643017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142420199 and 2142420208.

It is not an unprimeable number, because it can be changed into a prime (2142420253) 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, 10011203 + ... + 10011416.

It is an arithmetic number, because the mean of its divisors is an integer number (540610740).

Almost surely, 2^2142420233 is an apocalyptic number.

It is an amenable number.

2142420233 is a deficient number, since it is larger than the sum of its proper divisors (20022727).

2142420233 is a wasteful number, since it uses less digits than its factorization.

2142420233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20022726.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2142420233 is about 46286.2855822327. The cubic root of 2142420233 is about 1289.1443623858.

Adding to 2142420233 its reverse (3320242412), we get a palindrome (5462662645).

The spelling of 2142420233 in words is "two billion, one hundred forty-two million, four hundred twenty thousand, two hundred thirty-three".