2021010100203 has 8 divisors (see below), whose sum is σ = 2706245285328. Its totient is φ = 1341557490944.

The previous prime is 2021010100171. The next prime is 2021010100247. The reversal of 2021010100203 is 3020010101202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021010100203 - 2⁵ = 2021010100171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021010104203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445643150 + ... + 1445644547.

It is an arithmetic number, because the mean of its divisors is an integer number (338280660666).

Almost surely, 2^{2021010100203} is an apocalyptic number.

2021010100203 is a deficient number, since it is larger than the sum of its proper divisors (685235185125).

2021010100203 is a wasteful number, since it uses less digits than its factorization.

2021010100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891287933.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 2021010100203 its reverse (3020010101202), we get a palindrome (5041020201405).

Subtracting 2021010100203 from its reverse (3020010101202), we obtain a palindrome (999000000999).

The spelling of 2021010100203 in words is "two trillion, twenty-one billion, ten million, one hundred thousand, two hundred three".