20210111101203 has 16 divisors (see below), whose sum is σ = 28218481007616. Its totient is φ = 12841743696320.

The previous prime is 20210111101177. The next prime is 20210111101217. The reversal of 20210111101203 is 30210111101202.

It is a cyclic number.

It is not a de Polignac number, because 20210111101203 - 2⁴⁴ = 2617925056787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210111101603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521155275 + ... + 521194052.

It is an arithmetic number, because the mean of its divisors is an integer number (1763655062976).

Almost surely, 2^{20210111101203} is an apocalyptic number.

20210111101203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20210111101203 is a deficient number, since it is larger than the sum of its proper divisors (8008369906413).

20210111101203 is a wasteful number, since it uses less digits than its factorization.

20210111101203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042349634.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20210111101203 its reverse (30210111101202), we get a palindrome (50420222202405).

Subtracting 20210111101203 from its reverse (30210111101202), we obtain a palindrome (9999999999999).

The spelling of 20210111101203 in words is "twenty trillion, two hundred ten billion, one hundred eleven million, one hundred one thousand, two hundred three".