2113021203 has 8 divisors (see below), whose sum is σ = 2831520000. Its totient is φ = 1401601608.

The previous prime is 2113021187. The next prime is 2113021219. The reversal of 2113021203 is 3021203112.

It is an interprime number because it is at equal distance from previous prime (2113021187) and next prime (2113021219).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2113021203 - 2⁴ = 2113021187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2113021003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769103 + ... + 1770296.

It is an arithmetic number, because the mean of its divisors is an integer number (353940000).

Almost surely, 2^2113021203 is an apocalyptic number.

2113021203 is a deficient number, since it is larger than the sum of its proper divisors (718498797).

2113021203 is a wasteful number, since it uses less digits than its factorization.

2113021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539601.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2113021203 is about 45967.6103686063. The cubic root of 2113021203 is about 1283.2204880518.

Adding to 2113021203 its reverse (3021203112), we get a palindrome (5134224315).

The spelling of 2113021203 in words is "two billion, one hundred thirteen million, twenty-one thousand, two hundred three".