1703203213 has 2 divisors, whose sum is σ = 1703203214. Its totient is φ = 1703203212.

The previous prime is 1703203193. The next prime is 1703203217. The reversal of 1703203213 is 3123023071.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 882208804 + 820994409 = 29702^2 + 28653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1703203213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1703203217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 851601606 + 851601607.

It is an arithmetic number, because the mean of its divisors is an integer number (851601607).

Almost surely, 2^1703203213 is an apocalyptic number.

It is an amenable number.

1703203213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1703203213 is an equidigital number, since it uses as much as digits as its factorization.

1703203213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 1703203213 is about 41269.8826385537. The cubic root of 1703203213 is about 1194.2323257008.

Adding to 1703203213 its reverse (3123023071), we get a palindrome (4826226284).

The spelling of 1703203213 in words is "one billion, seven hundred three million, two hundred three thousand, two hundred thirteen".