2103621113 has 16 divisors (see below), whose sum is σ = 2313683136. Its totient is φ = 1896747840.

The previous prime is 2103621083. The next prime is 2103621127. The reversal of 2103621113 is 3111263012.

It is a cyclic number.

It is not a de Polignac number, because 2103621113 - 2⁶ = 2103621049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2103621133) 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, 1212995 + ... + 1214727.

It is an arithmetic number, because the mean of its divisors is an integer number (144605196).

Almost surely, 2^2103621113 is an apocalyptic number.

It is an amenable number.

2103621113 is a deficient number, since it is larger than the sum of its proper divisors (210062023).

2103621113 is a wasteful number, since it uses less digits than its factorization.

2103621113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2103621113 is about 45865.2495142019. The cubic root of 2103621113 is about 1281.3147934142.

Adding to 2103621113 its reverse (3111263012), we get a palindrome (5214884125).

The spelling of 2103621113 in words is "two billion, one hundred three million, six hundred twenty-one thousand, one hundred thirteen".