2003103120101 has 4 divisors (see below), whose sum is σ = 2051959293804. Its totient is φ = 1954246946400.

The previous prime is 2003103120089. The next prime is 2003103120121. The reversal of 2003103120101 is 1010213013002.

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 768339902500 + 1234763217601 = 876550^2 + 1111199^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003103120101 - 2²² = 2003098925797 is a prime.

It is a super-2 number, since 2×2003103120101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003103120121) 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, 24428086790 + ... + 24428086871.

It is an arithmetic number, because the mean of its divisors is an integer number (512989823451).

Almost surely, 2^{2003103120101} is an apocalyptic number.

It is an amenable number.

2003103120101 is a deficient number, since it is larger than the sum of its proper divisors (48856173703).

2003103120101 is an equidigital number, since it uses as much as digits as its factorization.

2003103120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48856173702.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 2003103120101 its reverse (1010213013002), we get a palindrome (3013316133103).

The spelling of 2003103120101 in words is "two trillion, three billion, one hundred three million, one hundred twenty thousand, one hundred one".