2103031213 has 2 divisors, whose sum is σ = 2103031214. Its totient is φ = 2103031212.

The previous prime is 2103031201. The next prime is 2103031247. The reversal of 2103031213 is 3121303012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1824742089 + 278289124 = 42717^2 + 16682^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103031213 - 2⁹ = 2103030701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103031253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051515606 + 1051515607.

It is an arithmetic number, because the mean of its divisors is an integer number (1051515607).

Almost surely, 2^2103031213 is an apocalyptic number.

It is an amenable number.

2103031213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103031213 is an equidigital number, since it uses as much as digits as its factorization.

2103031213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2103031213 is about 45858.8182686820. The cubic root of 2103031213 is about 1281.1950129311.

Adding to 2103031213 its reverse (3121303012), we get a palindrome (5224334225).

The spelling of 2103031213 in words is "two billion, one hundred three million, thirty-one thousand, two hundred thirteen".