20210102203 has 4 divisors (see below), whose sum is σ = 20300730688. Its totient is φ = 20119473720.

The previous prime is 20210102141. The next prime is 20210102207. The reversal of 20210102203 is 30220101202.

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 20210102203 - 2¹³ = 20210094011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210102207) 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, 45313908 + ... + 45314353.

It is an arithmetic number, because the mean of its divisors is an integer number (5075182672).

Almost surely, 2^20210102203 is an apocalyptic number.

20210102203 is a deficient number, since it is larger than the sum of its proper divisors (90628485).

20210102203 is an equidigital number, since it uses as much as digits as its factorization.

20210102203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90628484.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20210102203 its reverse (30220101202), we get a palindrome (50430203405).

The spelling of 20210102203 in words is "twenty billion, two hundred ten million, one hundred two thousand, two hundred three".