2103213133 has 6 divisors (see below), whose sum is σ = 2446594926. Its totient is φ = 1802754072.

The previous prime is 2103213107. The next prime is 2103213143. The reversal of 2103213133 is 3313123012.

It can be written as a sum of positive squares in only one way, i.e., 1779321124 + 323892009 = 42182^2 + 17997^2 .

It is not a de Polignac number, because 2103213133 - 2¹⁷ = 2103082061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2103213133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103213143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21461310 + ... + 21461407.

It is an arithmetic number, because the mean of its divisors is an integer number (407765821).

Almost surely, 2^2103213133 is an apocalyptic number.

It is an amenable number.

2103213133 is a deficient number, since it is larger than the sum of its proper divisors (343381793).

2103213133 is an equidigital number, since it uses as much as digits as its factorization.

2103213133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42922731 (or 42922724 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2103213133 is about 45860.8017047238. The cubic root of 2103213133 is about 1281.2319545727.

Adding to 2103213133 its reverse (3313123012), we get a palindrome (5416336145).

The spelling of 2103213133 in words is "two billion, one hundred three million, two hundred thirteen thousand, one hundred thirty-three".