1423140223 has 4 divisors (see below), whose sum is σ = 1498042360. Its totient is φ = 1348238088.

The previous prime is 1423140209. The next prime is 1423140247. The reversal of 1423140223 is 3220413241.

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 1423140223 - 2¹³ = 1423132031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423140194 and 1423140203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423140263) 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, 37451040 + ... + 37451077.

It is an arithmetic number, because the mean of its divisors is an integer number (374510590).

Almost surely, 2^1423140223 is an apocalyptic number.

1423140223 is a deficient number, since it is larger than the sum of its proper divisors (74902137).

1423140223 is an equidigital number, since it uses as much as digits as its factorization.

1423140223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74902136.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1423140223 is about 37724.5307856837. The cubic root of 1423140223 is about 1124.8187949793.

Adding to 1423140223 its reverse (3220413241), we get a palindrome (4643553464).

The spelling of 1423140223 in words is "one billion, four hundred twenty-three million, one hundred forty thousand, two hundred twenty-three".