213223783 has 2 divisors, whose sum is σ = 213223784. Its totient is φ = 213223782.

The previous prime is 213223781. The next prime is 213223793. The reversal of 213223783 is 387322312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213223783 - 2¹ = 213223781 is a prime.

It is a super-3 number, since 3×213223783³ (a number of 26 digits) contains 333 as substring.

Together with 213223781, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213223781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106611891 + 106611892.

It is an arithmetic number, because the mean of its divisors is an integer number (106611892).

Almost surely, 2^213223783 is an apocalyptic number.

213223783 is a deficient number, since it is larger than the sum of its proper divisors (1).

213223783 is an equidigital number, since it uses as much as digits as its factorization.

213223783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 31.

The square root of 213223783 is about 14602.1841859360. The cubic root of 213223783 is about 597.4183363237.

The spelling of 213223783 in words is "two hundred thirteen million, two hundred twenty-three thousand, seven hundred eighty-three".