20121101201103 has 32 divisors (see below), whose sum is σ = 30674515737600. Its totient is φ = 11492601981696.

The previous prime is 20121101201081. The next prime is 20121101201189. The reversal of 20121101201103 is 30110210112102.

It is not a de Polignac number, because 20121101201103 - 2¹³ = 20121101192911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121101201503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 541468038 + ... + 541505196.

It is an arithmetic number, because the mean of its divisors is an integer number (958578616800).

Almost surely, 2^{20121101201103} is an apocalyptic number.

20121101201103 is a deficient number, since it is larger than the sum of its proper divisors (10553414536497).

20121101201103 is a wasteful number, since it uses less digits than its factorization.

20121101201103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48071.

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

Adding to 20121101201103 its reverse (30110210112102), we get a palindrome (50231311313205).

The spelling of 20121101201103 in words is "twenty trillion, one hundred twenty-one billion, one hundred one million, two hundred one thousand, one hundred three".