202113120001 has 4 divisors (see below), whose sum is σ = 217660283092. Its totient is φ = 186565956912.

The previous prime is 202113119987. The next prime is 202113120017. The reversal of 202113120001 is 100021311202.

202113120001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 8570315776 + 193542804225 = 92576^2 + 439935^2 .

It is a cyclic number.

It is not a de Polignac number, because 202113120001 - 2²⁷ = 201978902273 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: 15547163077 = 202113120001 / (2 + 0 + 2 + 1 + 1 + 3 + 1 + 2 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202113120091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7773581526 + ... + 7773581551.

It is an arithmetic number, because the mean of its divisors is an integer number (54415070773).

Almost surely, 2^202113120001 is an apocalyptic number.

It is an amenable number.

202113120001 is a deficient number, since it is larger than the sum of its proper divisors (15547163091).

202113120001 is a wasteful number, since it uses less digits than its factorization.

202113120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15547163090.

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

Adding to 202113120001 its reverse (100021311202), we get a palindrome (302134431203).

The spelling of 202113120001 in words is "two hundred two billion, one hundred thirteen million, one hundred twenty thousand, one".