245021103503 has 4 divisors (see below), whose sum is σ = 267295749288. Its totient is φ = 222746457720.

The previous prime is 245021103499. The next prime is 245021103539. The reversal of 245021103503 is 305301120542.

It is a happy number.

245021103503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 245021103503 - 2² = 245021103499 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 (245021103553) 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 3 ways as a sum of consecutive naturals, for example, 11137322876 + ... + 11137322897.

It is an arithmetic number, because the mean of its divisors is an integer number (66823937322).

Almost surely, 2^245021103503 is an apocalyptic number.

245021103503 is a deficient number, since it is larger than the sum of its proper divisors (22274645785).

245021103503 is a wasteful number, since it uses less digits than its factorization.

245021103503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22274645784.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 245021103503 in words is "two hundred forty-five billion, twenty-one million, one hundred three thousand, five hundred three".