1203020253 has 12 divisors (see below), whose sum is σ = 1797616860. Its totient is φ = 774357696.

The previous prime is 1203020243. The next prime is 1203020279. The reversal of 1203020253 is 3520203021.

It can be written as a sum of positive squares in 2 ways, for example, as 692847684 + 510172569 = 26322^2 + 22587^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1203020253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203020243) 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 in 11 ways as a sum of consecutive naturals, for example, 2304376 + ... + 2304897.

It is an arithmetic number, because the mean of its divisors is an integer number (149801405).

Almost surely, 2^1203020253 is an apocalyptic number.

It is an amenable number.

1203020253 is a deficient number, since it is larger than the sum of its proper divisors (594596607).

1203020253 is a wasteful number, since it uses less digits than its factorization.

1203020253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609308 (or 4609305 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1203020253 is about 34684.5823529706. The cubic root of 1203020253 is about 1063.5493494195.

Adding to 1203020253 its reverse (3520203021), we get a palindrome (4723223274).

The spelling of 1203020253 in words is "one billion, two hundred three million, twenty thousand, two hundred fifty-three".