20210101112103 has 32 divisors (see below), whose sum is σ = 30986092363776. Its totient is φ = 11477477500128.

The previous prime is 20210101112083. The next prime is 20210101112147. The reversal of 20210101112103 is 30121110101202.

It is not a de Polignac number, because 20210101112103 - 2⁶ = 20210101112039 is a prime.

It is a super-2 number, since 2×20210101112103² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210101116103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231238150 + ... + 231325532.

It is an arithmetic number, because the mean of its divisors is an integer number (968315386368).

Almost surely, 2^{20210101112103} is an apocalyptic number.

20210101112103 is a deficient number, since it is larger than the sum of its proper divisors (10775991251673).

20210101112103 is a wasteful number, since it uses less digits than its factorization.

20210101112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155123.

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

Adding to 20210101112103 its reverse (30121110101202), we get a palindrome (50331211213305).

The spelling of 20210101112103 in words is "twenty trillion, two hundred ten billion, one hundred one million, one hundred twelve thousand, one hundred three".