1253424223109 has 4 divisors (see below), whose sum is σ = 1253440478604. Its totient is φ = 1253407967616.

The previous prime is 1253424223081. The next prime is 1253424223193. The reversal of 1253424223109 is 9013224243521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 946491602884 + 306932620225 = 972878^2 + 554015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253424223109 - 2²⁴ = 1253407445893 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 (1253424223199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8011532 + ... + 8166485.

It is an arithmetic number, because the mean of its divisors is an integer number (313360119651).

Almost surely, 2^{1253424223109} is an apocalyptic number.

It is an amenable number.

1253424223109 is a deficient number, since it is larger than the sum of its proper divisors (16255495).

1253424223109 is an equidigital number, since it uses as much as digits as its factorization.

1253424223109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16255494.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 1253424223109 in words is "one trillion, two hundred fifty-three billion, four hundred twenty-four million, two hundred twenty-three thousand, one hundred nine".