203312102001 has 4 divisors (see below), whose sum is σ = 271082802672. Its totient is φ = 135541401332.

The previous prime is 203312101999. The next prime is 203312102033. The reversal of 203312102001 is 100201213302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203312102001 - 2¹ = 203312101999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203312102051) 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, 33885350331 + ... + 33885350336.

It is an arithmetic number, because the mean of its divisors is an integer number (67770700668).

Almost surely, 2^203312102001 is an apocalyptic number.

It is an amenable number.

203312102001 is a deficient number, since it is larger than the sum of its proper divisors (67770700671).

203312102001 is an equidigital number, since it uses as much as digits as its factorization.

203312102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67770700670.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 203312102001 its reverse (100201213302), we get a palindrome (303513315303).

The spelling of 203312102001 in words is "two hundred three billion, three hundred twelve million, one hundred two thousand, one".