213023661959 has 2 divisors, whose sum is σ = 213023661960. Its totient is φ = 213023661958.

The previous prime is 213023661943. The next prime is 213023661967. The reversal of 213023661959 is 959166320312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213023661959 - 2⁴ = 213023661943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213023661259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106511830979 + 106511830980.

It is an arithmetic number, because the mean of its divisors is an integer number (106511830980).

Almost surely, 2^213023661959 is an apocalyptic number.

213023661959 is a deficient number, since it is larger than the sum of its proper divisors (1).

213023661959 is an equidigital number, since it uses as much as digits as its factorization.

213023661959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 47.

The spelling of 213023661959 in words is "two hundred thirteen billion, twenty-three million, six hundred sixty-one thousand, nine hundred fifty-nine".