1253203113 has 8 divisors (see below), whose sum is σ = 1671112800. Its totient is φ = 835381088.

The previous prime is 1253203103. The next prime is 1253203141. The reversal of 1253203113 is 3113023521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253203113 - 2⁸ = 1253202857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1253203113.

It is not an unprimeable number, because it can be changed into a prime (1253203103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27118 + ... + 56936.

It is an arithmetic number, because the mean of its divisors is an integer number (208889100).

Almost surely, 2^1253203113 is an apocalyptic number.

It is an amenable number.

1253203113 is a deficient number, since it is larger than the sum of its proper divisors (417909687).

1253203113 is a wasteful number, since it uses less digits than its factorization.

1253203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43831.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1253203113 is about 35400.6089354406. The cubic root of 1253203113 is about 1078.1366799020.

Adding to 1253203113 its reverse (3113023521), we get a palindrome (4366226634).

The spelling of 1253203113 in words is "one billion, two hundred fifty-three million, two hundred three thousand, one hundred thirteen".