1423243243 has 4 divisors (see below), whose sum is σ = 1485123408. Its totient is φ = 1361363080.

The previous prime is 1423243231. The next prime is 1423243301. The reversal of 1423243243 is 3423423241.

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 1423243243 - 2⁹ = 1423242731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423240243) 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, 30940048 + ... + 30940093.

It is an arithmetic number, because the mean of its divisors is an integer number (371280852).

Almost surely, 2^1423243243 is an apocalyptic number.

1423243243 is a deficient number, since it is larger than the sum of its proper divisors (61880165).

1423243243 is an equidigital number, since it uses as much as digits as its factorization.

1423243243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61880164.

The product of its digits is 13824, while the sum is 28.

The square root of 1423243243 is about 37725.8961855116. The cubic root of 1423243243 is about 1124.8459359066.

Adding to 1423243243 its reverse (3423423241), we get a palindrome (4846666484).

It can be divided in two parts, 14232 and 43243, that added together give a palindrome (57475).

The spelling of 1423243243 in words is "one billion, four hundred twenty-three million, two hundred forty-three thousand, two hundred forty-three".