203112122131201 has 4 divisors (see below), whose sum is σ = 203118396672304. Its totient is φ = 203105847590100.

The previous prime is 203112122131063. The next prime is 203112122131229. The reversal of 203112122131201 is 102131221211302.

It is a happy number.

203112122131201 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, 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 203112122131201 - 2³⁹ = 202562366317313 is a prime.

It is a super-2 number, since 2×203112122131201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203112122131291) 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, 3137221995 + ... + 3137286736.

It is an arithmetic number, because the mean of its divisors is an integer number (50779599168076).

Almost surely, 2^{203112122131201} is an apocalyptic number.

It is an amenable number.

203112122131201 is a deficient number, since it is larger than the sum of its proper divisors (6274541103).

203112122131201 is an equidigital number, since it uses as much as digits as its factorization.

203112122131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6274541102.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 203112122131201 its reverse (102131221211302), we get a palindrome (305243343342503).

The spelling of 203112122131201 in words is "two hundred three trillion, one hundred twelve billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred one".