204102242603 has 4 divisors (see below), whose sum is σ = 233259705840. Its totient is φ = 174944779368.

The previous prime is 204102242587. The next prime is 204102242611. The reversal of 204102242603 is 306242201402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306242201402 = 2 ⋅153121100701.

It is a cyclic number.

It is not a de Polignac number, because 204102242603 - 2⁴ = 204102242587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204102242633) 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, 14578731608 + ... + 14578731621.

It is an arithmetic number, because the mean of its divisors is an integer number (58314926460).

Almost surely, 2^204102242603 is an apocalyptic number.

204102242603 is a deficient number, since it is larger than the sum of its proper divisors (29157463237).

204102242603 is an equidigital number, since it uses as much as digits as its factorization.

204102242603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29157463236.

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 204102242603 in words is "two hundred four billion, one hundred two million, two hundred forty-two thousand, six hundred three".