213333011789 has 2 divisors, whose sum is σ = 213333011790. Its totient is φ = 213333011788.

The previous prime is 213333011761. The next prime is 213333011803. The reversal of 213333011789 is 987110333312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153696929764 + 59636082025 = 392042^2 + 244205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213333011789 is a prime.

It is a super-2 number, since 2×213333011789² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213333011989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106666505894 + 106666505895.

It is an arithmetic number, because the mean of its divisors is an integer number (106666505895).

Almost surely, 2^213333011789 is an apocalyptic number.

It is an amenable number.

213333011789 is a deficient number, since it is larger than the sum of its proper divisors (1).

213333011789 is an equidigital number, since it uses as much as digits as its factorization.

213333011789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 213333011789 in words is "two hundred thirteen billion, three hundred thirty-three million, eleven thousand, seven hundred eighty-nine".