213203743 has 2 divisors, whose sum is σ = 213203744. Its totient is φ = 213203742.

The previous prime is 213203719. The next prime is 213203759. The reversal of 213203743 is 347302312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213203743 - 2²¹ = 211106591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213203773) 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 as a sum of consecutive naturals, namely, 106601871 + 106601872.

It is an arithmetic number, because the mean of its divisors is an integer number (106601872).

Almost surely, 2^213203743 is an apocalyptic number.

213203743 is a deficient number, since it is larger than the sum of its proper divisors (1).

213203743 is an equidigital number, since it uses as much as digits as its factorization.

213203743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 213203743 is about 14601.4979710987. The cubic root of 213203743 is about 597.3996194645.

The spelling of 213203743 in words is "two hundred thirteen million, two hundred three thousand, seven hundred forty-three".