203120100001 has 64 divisors (see below), whose sum is σ = 268480396800. Its totient is φ = 149176774656.

The previous prime is 203120099993. The next prime is 203120100019. The reversal of 203120100001 is 100001021302.

203120100001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203120100001 - 2³ = 203120099993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203120100091) 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 63 ways as a sum of consecutive naturals, for example, 118852335 + ... + 118854043.

It is an arithmetic number, because the mean of its divisors is an integer number (4195006200).

Almost surely, 2^203120100001 is an apocalyptic number.

It is an amenable number.

203120100001 is a deficient number, since it is larger than the sum of its proper divisors (65360296799).

203120100001 is a wasteful number, since it uses less digits than its factorization.

203120100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 203120100001 its reverse (100001021302), we get a palindrome (303121121303).

The spelling of 203120100001 in words is "two hundred three billion, one hundred twenty million, one hundred thousand, one".