213230873069 has 2 divisors, whose sum is σ = 213230873070. Its totient is φ = 213230873068.

The previous prime is 213230872931. The next prime is 213230873117. The reversal of 213230873069 is 960378032312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173440597444 + 39790275625 = 416462^2 + 199475^2 .

It is a cyclic number.

It is not a de Polignac number, because 213230873069 - 2²⁸ = 212962437613 is a prime.

It is a super-2 number, since 2×213230873069² (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 (213230872069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106615436534 + 106615436535.

It is an arithmetic number, because the mean of its divisors is an integer number (106615436535).

Almost surely, 2^213230873069 is an apocalyptic number.

It is an amenable number.

213230873069 is a deficient number, since it is larger than the sum of its proper divisors (1).

213230873069 is an equidigital number, since it uses as much as digits as its factorization.

213230873069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 213230873069 in words is "two hundred thirteen billion, two hundred thirty million, eight hundred seventy-three thousand, sixty-nine".