1245311053303 has 4 divisors (see below), whose sum is σ = 1245333948768. Its totient is φ = 1245288157840.

The previous prime is 1245311053291. The next prime is 1245311053333. The reversal of 1245311053303 is 3033501135421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1245311053303 - 2⁵ = 1245311053271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245311053333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11365951 + ... + 11474992.

It is an arithmetic number, because the mean of its divisors is an integer number (311333487192).

Almost surely, 2^{1245311053303} is an apocalyptic number.

1245311053303 is a deficient number, since it is larger than the sum of its proper divisors (22895465).

1245311053303 is an equidigital number, since it uses as much as digits as its factorization.

1245311053303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22895464.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 1245311053303 its reverse (3033501135421), we get a palindrome (4278812188724).

The spelling of 1245311053303 in words is "one trillion, two hundred forty-five billion, three hundred eleven million, fifty-three thousand, three hundred three".