1423730213 has 4 divisors (see below), whose sum is σ = 1423839648. Its totient is φ = 1423620780.

The previous prime is 1423730171. The next prime is 1423730219. The reversal of 1423730213 is 3120373241.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3120373241 = 193 ⋅16167737.

It is a cyclic number.

It is not a de Polignac number, because 1423730213 - 2¹⁰ = 1423729189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423730219) 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, 32081 + ... + 62262.

It is an arithmetic number, because the mean of its divisors is an integer number (355959912).

Almost surely, 2^1423730213 is an apocalyptic number.

It is an amenable number.

1423730213 is a deficient number, since it is larger than the sum of its proper divisors (109435).

1423730213 is an equidigital number, since it uses as much as digits as its factorization.

1423730213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109434.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 1423730213 is about 37732.3496882980. The cubic root of 1423730213 is about 1124.9742118862.

The spelling of 1423730213 in words is "one billion, four hundred twenty-three million, seven hundred thirty thousand, two hundred thirteen".