1001223453 has 4 divisors (see below), whose sum is σ = 1334964608. Its totient is φ = 667482300.

The previous prime is 1001223413. The next prime is 1001223467. The reversal of 1001223453 is 3543221001.

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.

It is not a de Polignac number, because 1001223453 - 2¹³ = 1001215261 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 (1001223413) 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, 166870573 + ... + 166870578.

It is an arithmetic number, because the mean of its divisors is an integer number (333741152).

Almost surely, 2^1001223453 is an apocalyptic number.

It is an amenable number.

1001223453 is a deficient number, since it is larger than the sum of its proper divisors (333741155).

1001223453 is an equidigital number, since it uses as much as digits as its factorization.

1001223453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333741154.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1001223453 is about 31642.1151789826. The cubic root of 1001223453 is about 1000.4076514644.

Adding to 1001223453 its reverse (3543221001), we get a palindrome (4544444454).

The spelling of 1001223453 in words is "one billion, one million, two hundred twenty-three thousand, four hundred fifty-three".