2003003226161 has 4 divisors (see below), whose sum is σ = 2289146544192. Its totient is φ = 1716859908132.

The previous prime is 2003003226149. The next prime is 2003003226167. The reversal of 2003003226161 is 1616223003002.

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 2003003226161 - 2²⁶ = 2002936117297 is a prime.

It is a super-2 number, since 2×2003003226161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2003003226161.

It is not an unprimeable number, because it can be changed into a prime (2003003226167) 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, 143071659005 + ... + 143071659018.

It is an arithmetic number, because the mean of its divisors is an integer number (572286636048).

Almost surely, 2^{2003003226161} is an apocalyptic number.

It is an amenable number.

2003003226161 is a deficient number, since it is larger than the sum of its proper divisors (286143318031).

2003003226161 is an equidigital number, since it uses as much as digits as its factorization.

2003003226161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286143318030.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 2003003226161 its reverse (1616223003002), we get a palindrome (3619226229163).

The spelling of 2003003226161 in words is "two trillion, three billion, three million, two hundred twenty-six thousand, one hundred sixty-one".