121310231110201 has 12 divisors (see below), whose sum is σ = 142701555977460. Its totient is φ = 102811881258240.

The previous prime is 121310231110163. The next prime is 121310231110331. The reversal of 121310231110201 is 102011132013121.

It can be written as a sum of positive squares in 2 ways, for example, as 63340889772601 + 57969341337600 = 7958699^2 + 7613760^2 .

It is not a de Polignac number, because 121310231110201 - 2⁹ = 121310231109689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121310231150201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13908529360 + ... + 13908538081.

It is an arithmetic number, because the mean of its divisors is an integer number (11891796331455).

Almost surely, 2^{121310231110201} is an apocalyptic number.

It is an amenable number.

121310231110201 is a deficient number, since it is larger than the sum of its proper divisors (21391324867259).

121310231110201 is an equidigital number, since it uses as much as digits as its factorization.

121310231110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27817067544 (or 27817067537 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121310231110201 its reverse (102011132013121), we get a palindrome (223321363123322).

The spelling of 121310231110201 in words is "one hundred twenty-one trillion, three hundred ten billion, two hundred thirty-one million, one hundred ten thousand, two hundred one".