213023022073 has 2 divisors, whose sum is σ = 213023022074. Its totient is φ = 213023022072.

The previous prime is 213023021999. The next prime is 213023022089. The reversal of 213023022073 is 370220320312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138203267049 + 74819755024 = 371757^2 + 273532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213023022073 is a prime.

It is a super-2 number, since 2×213023022073² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213023022473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106511511036 + 106511511037.

It is an arithmetic number, because the mean of its divisors is an integer number (106511511037).

Almost surely, 2^213023022073 is an apocalyptic number.

It is an amenable number.

213023022073 is a deficient number, since it is larger than the sum of its proper divisors (1).

213023022073 is an equidigital number, since it uses as much as digits as its factorization.

213023022073 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.

Adding to 213023022073 its reverse (370220320312), we get a palindrome (583243342385).

The spelling of 213023022073 in words is "two hundred thirteen billion, twenty-three million, twenty-two thousand, seventy-three".