1012315550209 has 2 divisors, whose sum is σ = 1012315550210. Its totient is φ = 1012315550208.

The previous prime is 1012315550189. The next prime is 1012315550273. The reversal of 1012315550209 is 9020555132101.

It is a happy number.

1012315550209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 843739613809 + 168575936400 = 918553^2 + 410580^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012315550209 - 2⁵ = 1012315550177 is a prime.

It is a super-3 number, since 3×1012315550209³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1012315550009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506157775104 + 506157775105.

It is an arithmetic number, because the mean of its divisors is an integer number (506157775105).

Almost surely, 2^{1012315550209} is an apocalyptic number.

It is an amenable number.

1012315550209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012315550209 is an equidigital number, since it uses as much as digits as its factorization.

1012315550209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 1012315550209 in words is "one trillion, twelve billion, three hundred fifteen million, five hundred fifty thousand, two hundred nine".