100203202013203 has 4 divisors (see below), whose sum is σ = 105477054750760. Its totient is φ = 94929349275648.

The previous prime is 100203202013197. The next prime is 100203202013227. The reversal of 100203202013203 is 302310202302001.

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 100203202013203 - 2⁵ = 100203202013171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 5273852737537 = 100203202013203 / (1 + 0 + 0 + 2 + 0 + 3 + 2 + 0 + 2 + 0 + 1 + 3 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100203202013003) 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, 2636926368750 + ... + 2636926368787.

It is an arithmetic number, because the mean of its divisors is an integer number (26369263687690).

Almost surely, 2^{100203202013203} is an apocalyptic number.

100203202013203 is a deficient number, since it is larger than the sum of its proper divisors (5273852737557).

100203202013203 is an equidigital number, since it uses as much as digits as its factorization.

100203202013203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273852737556.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 100203202013203 its reverse (302310202302001), we get a palindrome (402513404315204).

The spelling of 100203202013203 in words is "one hundred trillion, two hundred three billion, two hundred two million, thirteen thousand, two hundred three".