1011209858959 has 2 divisors, whose sum is σ = 1011209858960. Its totient is φ = 1011209858958.

The previous prime is 1011209858951. The next prime is 1011209859019. The reversal of 1011209858959 is 9598589021101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011209858959 - 2³ = 1011209858951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011209858951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505604929479 + 505604929480.

It is an arithmetic number, because the mean of its divisors is an integer number (505604929480).

Almost surely, 2^{1011209858959} is an apocalyptic number.

1011209858959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011209858959 is an equidigital number, since it uses as much as digits as its factorization.

1011209858959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 58.

The spelling of 1011209858959 in words is "one trillion, eleven billion, two hundred nine million, eight hundred fifty-eight thousand, nine hundred fifty-nine".