1253044434213 has 40 divisors (see below), whose sum is σ = 2199075152736. Its totient is φ = 701003872800.

The previous prime is 1253044434209. The next prime is 1253044434241. The reversal of 1253044434213 is 3124344403521.

1253044434213 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 0 + 4 + 4 + 434 + 213 = 666.

It is not a de Polignac number, because 1253044434213 - 2² = 1253044434209 is a prime.

It is a super-2 number, since 2×1253044434213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253044434113) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54078223 + ... + 54101388.

Almost surely, 2^{1253044434213} is an apocalyptic number.

1253044434213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1253044434213 is a deficient number, since it is larger than the sum of its proper divisors (946030718523).

1253044434213 is a wasteful number, since it uses less digits than its factorization.

1253044434213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108179647 (or 108179638 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 1253044434213 its reverse (3124344403521), we get a palindrome (4377388837734).

The spelling of 1253044434213 in words is "one trillion, two hundred fifty-three billion, forty-four million, four hundred thirty-four thousand, two hundred thirteen".