1423221133 has 4 divisors (see below), whose sum is σ = 1423689148. Its totient is φ = 1422753120.

The previous prime is 1423221127. The next prime is 1423221157. The reversal of 1423221133 is 3311223241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3311223241 = 607 ⋅5455063.

It can be written as a sum of positive squares in 2 ways, for example, as 1080897129 + 342324004 = 32877^2 + 18502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423221133 - 2⁹ = 1423220621 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 (1423221193) 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, 229416 + ... + 235537.

It is an arithmetic number, because the mean of its divisors is an integer number (355922287).

Almost surely, 2^1423221133 is an apocalyptic number.

It is an amenable number.

1423221133 is a deficient number, since it is larger than the sum of its proper divisors (468015).

1423221133 is an equidigital number, since it uses as much as digits as its factorization.

1423221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468014.

The product of its digits is 864, while the sum is 22.

The square root of 1423221133 is about 37725.6031495853. The cubic root of 1423221133 is about 1124.8401110713.

Adding to 1423221133 its reverse (3311223241), we get a palindrome (4734444374).

The spelling of 1423221133 in words is "one billion, four hundred twenty-three million, two hundred twenty-one thousand, one hundred thirty-three".