121320010201 has 4 divisors (see below), whose sum is σ = 130652318692. Its totient is φ = 111987701712.

The previous prime is 121320010171. The next prime is 121320010223. The reversal of 121320010201 is 102010023121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10231120201 + 111088890000 = 101149^2 + 333300^2 .

It is a cyclic number.

It is not a de Polignac number, because 121320010201 - 2¹⁷ = 121319879129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 9332308477 = 121320010201 / (1 + 2 + 1 + 3 + 2 + 0 + 0 + 1 + 0 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121320010291) 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, 4666154226 + ... + 4666154251.

It is an arithmetic number, because the mean of its divisors is an integer number (32663079673).

Almost surely, 2^121320010201 is an apocalyptic number.

It is an amenable number.

121320010201 is a deficient number, since it is larger than the sum of its proper divisors (9332308491).

121320010201 is an equidigital number, since it uses as much as digits as its factorization.

121320010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9332308490.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121320010201 its reverse (102010023121), we get a palindrome (223330033322).

The spelling of 121320010201 in words is "one hundred twenty-one billion, three hundred twenty million, ten thousand, two hundred one".