121203113312101 has 8 divisors (see below), whose sum is σ = 126711892946880. Its totient is φ = 115933412721676.

The previous prime is 121203113312089. The next prime is 121203113312117. The reversal of 121203113312101 is 101213311302121.

It is a de Polignac number, because none of the positive numbers 2^k-121203113312101 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 (121203113312401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4980801235 + ... + 4980825568.

It is an arithmetic number, because the mean of its divisors is an integer number (15838986618360).

Almost surely, 2^{121203113312101} is an apocalyptic number.

It is an amenable number.

121203113312101 is a deficient number, since it is larger than the sum of its proper divisors (5508779634779).

121203113312101 is an frugal number, since it uses more digits than its factorization.

121203113312101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9961626872 (or 9961626826 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 121203113312101 its reverse (101213311302121), we get a palindrome (222416424614222).

The spelling of 121203113312101 in words is "one hundred twenty-one trillion, two hundred three billion, one hundred thirteen million, three hundred twelve thousand, one hundred one".