20101212110103 has 8 divisors (see below), whose sum is σ = 26801657007216. Its totient is φ = 13400787643200.

The previous prime is 20101212110099. The next prime is 20101212110123. The reversal of 20101212110103 is 30101121210102.

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

It is not a de Polignac number, because 20101212110103 - 2² = 20101212110099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101212110123) 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 7 ways as a sum of consecutive naturals, for example, 2641728 + ... + 6868853.

It is an arithmetic number, because the mean of its divisors is an integer number (3350207125902).

Almost surely, 2^{20101212110103} is an apocalyptic number.

20101212110103 is a deficient number, since it is larger than the sum of its proper divisors (6700444897113).

20101212110103 is an equidigital number, since it uses as much as digits as its factorization.

20101212110103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215105.

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

Adding to 20101212110103 its reverse (30101121210102), we get a palindrome (50202333320205).

Subtracting 20101212110103 from its reverse (30101121210102), we obtain a palindrome (9999909099999).

The spelling of 20101212110103 in words is "twenty trillion, one hundred one billion, two hundred twelve million, one hundred ten thousand, one hundred three".