2003122101 has 16 divisors (see below), whose sum is σ = 2815718400. Its totient is φ = 1263186288.

The previous prime is 2003122097. The next prime is 2003122109. The reversal of 2003122101 is 1012213002.

It is not a de Polignac number, because 2003122101 - 2² = 2003122097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003122109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10900 + ... + 64226.

It is an arithmetic number, because the mean of its divisors is an integer number (175982400).

Almost surely, 2^2003122101 is an apocalyptic number.

It is an amenable number.

2003122101 is a deficient number, since it is larger than the sum of its proper divisors (812596299).

2003122101 is a wasteful number, since it uses less digits than its factorization.

2003122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54008.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2003122101 is about 44756.2520883954. The cubic root of 2003122101 is about 1260.5763091771.

Adding to 2003122101 its reverse (1012213002), we get a palindrome (3015335103).

Subtracting from 2003122101 its reverse (1012213002), we obtain a palindrome (990909099).

The spelling of 2003122101 in words is "two billion, three million, one hundred twenty-two thousand, one hundred one".