423433321442 has 4 divisors (see below), whose sum is σ = 635149982166. Its totient is φ = 211716660720.

The previous prime is 423433321417. The next prime is 423433321447. The reversal of 423433321442 is 244123334324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 253168979281 + 170264342161 = 503159^2 + 412631^2 .

It is not an unprimeable number, because it can be changed into a prime (423433321447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105858330359 + ... + 105858330362.

Almost surely, 2^423433321442 is an apocalyptic number.

423433321442 is a deficient number, since it is larger than the sum of its proper divisors (211716660724).

423433321442 is a wasteful number, since it uses less digits than its factorization.

423433321442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211716660723.

The product of its digits is 165888, while the sum is 35.

Adding to 423433321442 its reverse (244123334324), we get a palindrome (667556655766).

The spelling of 423433321442 in words is "four hundred twenty-three billion, four hundred thirty-three million, three hundred twenty-one thousand, four hundred forty-two".