20110201021103 has 4 divisors (see below), whose sum is σ = 20110232863800. Its totient is φ = 20110169178408.

The previous prime is 20110201021069. The next prime is 20110201021117. The reversal of 20110201021103 is 30112010201102.

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 20110201021103 - 2¹⁸ = 20110200758959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110201021133) 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, 14954453 + ... + 16243646.

It is an arithmetic number, because the mean of its divisors is an integer number (5027558215950).

Almost surely, 2^{20110201021103} is an apocalyptic number.

20110201021103 is a deficient number, since it is larger than the sum of its proper divisors (31842697).

20110201021103 is an equidigital number, since it uses as much as digits as its factorization.

20110201021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31842696.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20110201021103 its reverse (30112010201102), we get a palindrome (50222211222205).

The spelling of 20110201021103 in words is "twenty trillion, one hundred ten billion, two hundred one million, twenty-one thousand, one hundred three".