1253143103 has 2 divisors, whose sum is σ = 1253143104. Its totient is φ = 1253143102.

The previous prime is 1253143079. The next prime is 1253143139. The reversal of 1253143103 is 3013413521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253143103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253143603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626571551 + 626571552.

It is an arithmetic number, because the mean of its divisors is an integer number (626571552).

Almost surely, 2^1253143103 is an apocalyptic number.

1253143103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253143103 is an equidigital number, since it uses as much as digits as its factorization.

1253143103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1253143103 is about 35399.7613410034. The cubic root of 1253143103 is about 1078.1194706632.

Adding to 1253143103 its reverse (3013413521), we get a palindrome (4266556624).

The spelling of 1253143103 in words is "one billion, two hundred fifty-three million, one hundred forty-three thousand, one hundred three".