1253430203 has 8 divisors (see below), whose sum is σ = 1256970000. Its totient is φ = 1249896960.

The previous prime is 1253430197. The next prime is 1253430259. The reversal of 1253430203 is 3020343521.

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 1253430203 - 2⁴ = 1253430187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253430293) 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 7 ways as a sum of consecutive naturals, for example, 1002923 + ... + 1004171.

It is an arithmetic number, because the mean of its divisors is an integer number (157121250).

Almost surely, 2^1253430203 is an apocalyptic number.

1253430203 is a deficient number, since it is larger than the sum of its proper divisors (3539797).

1253430203 is a wasteful number, since it uses less digits than its factorization.

1253430203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1253430203 is about 35403.8162208539. The cubic root of 1253430203 is about 1078.2017981762.

Adding to 1253430203 its reverse (3020343521), we get a palindrome (4273773724).

The spelling of 1253430203 in words is "one billion, two hundred fifty-three million, four hundred thirty thousand, two hundred three".