245143102103 has 4 divisors (see below), whose sum is σ = 247434159240. Its totient is φ = 242852044968.

The previous prime is 245143102049. The next prime is 245143102121. The reversal of 245143102103 is 301201341542.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245143102103 is a prime.

It is a super-3 number, since 3×245143102103³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245143102153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145528408 + ... + 1145528621.

It is an arithmetic number, because the mean of its divisors is an integer number (61858539810).

Almost surely, 2^245143102103 is an apocalyptic number.

245143102103 is a deficient number, since it is larger than the sum of its proper divisors (2291057137).

245143102103 is a wasteful number, since it uses less digits than its factorization.

245143102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291057136.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 245143102103 its reverse (301201341542), we get a palindrome (546344443645).

The spelling of 245143102103 in words is "two hundred forty-five billion, one hundred forty-three million, one hundred two thousand, one hundred three".